Best Sports Bras for AA to D Cups of 2026
Supportive and Comfortable Sports Bras for Running, Hiking and Outdoor Pursuits
August 6th, 2026, updated with a new overall winner, recovery bar, sports bra for hiking, and 10 new sports bras tested
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A good sports bra should feel like nothing is there. No bouncing, no chafing, no straps digging in after two hours of movement, and no mid-run readjustment. That sounds simple enough, but finding a bra that actually delivers all of that across a range of activities and cup sizes and body shapes is genuinely harder than it should be.
Over four years of research and testing, we’ve tested dozens of sports bras of all styles and support levels. We’ve tested on trail runs, bike rides, ski tours, backpacking trips, during strength training gym sessions and morning yoga, and beyond.
We evaluated each bra on support level for the intended impact, moisture wicking and breathability, comfort over extended wear, how well the sizing actually matched the sizing chart, odor resistance for multi-day use, and whether the bra was something we actually wanted to reach for again and again. This guide covers AA to D cups; for larger cup sizes, see our companion guide to the Best Sports Bras for D+ Cups.
Top Pick: The Ridge Merino Send It Seamless Sports Bra earns our Best Overall award. It stood out for its rare combination of merino wool odor resistance and quick-dry performance with enough recycled nylon and spandex compression to handle everything from mountain biking and hiking to a 75-mile gravel race in the heat, all in a simple racerback design that fits true to size and genuinely disappears during wear.
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Comparison Table for Sports Bras
| SPORTS BRA | TREELINE AWARD | MSRP | SIZES | SUPPORT | STYLE | COMPRESSION OR ENCAPSULATION | MATERIALS |
|---|---|---|---|---|---|---|---|
| Ridge Merino Send-It Seamless | Best overall Read review |
$60 | XS-XL | Medium | Racerback | Compression | Recycled nylon, merino wool, spandex |
| Oiselle Flyout | Best for running Read review |
$78 | 2-14 | Medium/high | Crop tank | Compression | Polyester, spandex |
| On Endurance | Best high impact Read review |
$85 | XXS-XL | High | Racerback | Both | Recycled polyester, spandex |
| Prana Becksa Bralette | Best low impact Read review |
$65 | XS-XL | Low/medium | Crop racerback | Compression | Recycled poly blend |
| Ciele Athletics FSTBra | Best compression Read review |
$80 | XS-XXL | Medium/high | Crop tank | Compression | Nylon, spandex |
| Branwyn Essential Racerback | Best for hiking Read review |
$85 | XS-XXL | Medium | Racerback | Compression | Merino wool, nylon, spandex |
| Tracksmith Allston | Best with phone pocket Read review |
$80 | XS-L | Medium | Racerback | Compression | Nylon, spandex |
| Ortovox 185 Rock'N'Wool Sport Top | Best wool Read review |
$75 | XS-XL | Low | Racerback | Compression | Merino wool, elastic |
| Girlfriend Collective Paloma Racerback | Best for everyday wear Read review |
$68 | XXS-6XL | Medium | Racerback | Compression | Recycled plastic, spandex |
| Nike Swoosh Medium-Support | Best budget Read review |
$42 | XS-2X | Medium | Racerback | Compression | Polyester, spandex |
| Paka Essential Scoop | Best recovery Read review |
$45 | XS-XXL | Low | Square neck | Compression | Tencel, cotton, alpaca, spandex |
* Prices reflect MSRP and are subject to change. We note any discounts we see on our Deals page, which is updated daily.
The Best Sports Bras for A-D Cups
After researching over one hundred sports bras on the market, we tested 35 different styles to find the best sports bra for everything from yoga to running and even backcountry adventures.
Best overall Sports Bra: Ridge Merino Send-It Seamless Sports Bra
Bra size availability: XS-XL
Support/Impact: medium
Style: racerback
Encapsulation or compression: compression
Material: recycled nylon, merino wool, spandex
Features: removable cups
What we liked: comfortable, flattering, supportive, simple design, good materials for wicking and performance
What we didn’t like: could have a wider range of sizes and colors, no pockets
We love having a sports bra in the closet that we can throw on for just about any activity. After more than a year of testing through all seasons and a wide variety of activities, the Ridge Send-It Seamless racerback has earned its keep as that ideal bra. We’ve used it for everything from daily morning yoga and weight training to mountain biking, cycling, hiking, backpacking, resort skiing, backcountry and Nordic skiing, and even some short trail runs. It is that unicorn bra that is both supportive enough for most activities and comfortable and flattering enough that we don’t want to take it off when we’re done. Of all the dozens of sports bras we’ve tested over the years, this is the best all-around medium impact option.
Ridge Merino Send-It Seamless Sports Bra
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We tested this bra over a year and a half and used it nearly every day during that time for yoga, strength training, skiing, backpacking, hiking, and mountain biking and cycling—including a 75 mile gravel race with temps in the 80’s, a high alpine 50-mile mountain bike race, and a 115-mile gravel race, plus loads of ski touring, resort skiing, and Nordic skiing in the winter months.
It was comfortable and supportive enough to wear for full days of activity and even multi-day backpacking trips. It wicked sweat well and dried quickly. It so quickly rose to the top as the bra we wanted to wear for just about everything, with the exception of long runs where we chose something with more support.
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Merino wool is an excellent material for next-to-skin layers in all seasons—it wicks moisture, dries quickly, and resists odor. But pure merino wool on its own does not have much structure or compression. So this bra, while it does have a significant amount (38%) of merino woven into it, it also uses sturdier and more compressive materials like recycled nylon and spandex. This makes for a sports bra that performs well on all fronts, from support and compression to sweat wicking and odor control.
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The shape and design of the Send-It is pretty simple, and that’s part of why we like it. In our testing, we often found the most comfortable sports bras to be the ones with designs that weren’t overcomplicated. This basic racerback design has straps that are wide enough to be supportive without being cumbersome, and they hit in just the right spot, meaning they don’t cause any pressure or pain in the shoulders or neck. The bra has good moderate coverage that held our tester in well whether pedaling on a bike or getting upside down in a yoga headstand. This bra fits true to size. Our tester wears around a size 36C/34D and found a perfect fit in a medium.
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The blend of merino with synthetics makes this bra very good at wicking sweat overall. We never felt clammy or sticky in this bra, even when the intensity of exercise or summer heat was turned up high.
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As we write in our coverage of new gear at Outdoor Market Alliance Summer 2026, the new Ridge Send-It Seamless has a higher merino content, more stretchiness, and more fabric designed with better ventilation. The added stretchiness also makes it a little more size-inclusive, while the softer lining adds comfort.
Best sports bra for running: Oiselle Flyout
Bra size availability: 2-14
Support/Impact: medium/high
Style: wide-strap racerback
Encapsulation or compression: compression
Material: polyester and spandex
Features: wide straps for comfort and support, back phone pocket
What we liked: wide straps are comfortable and supportive, good compression and support without being overly cumbersome to wear
What we didn’t like: thick fabric is slower to dry
For high-impact activities like running, a supportive bra is critical. After testing numerous high-impact sports bras, we’ve found the Oiselle Flyout bra to offer the ideal balance of support and comfort for high-impact activities for A-D cup sizes. (If you’re a larger cup size, you can find more options in our sports bra review for D+ and up sizes.) The combination of compressive fabric, ample coverage, and uniquely wide shoulder straps makes this our favorite running and high-impact bra.
Oiselle Flyout
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Our tester uses this bra religiously for running. She uses it for regular runs in all seasons, and has used it for training and races, like the Moab Half Marathon. Many high-impact bras can end up feeling like body armor—not something everyone wants when out on a run. But a supportive bra is crucial for runners (and can even help prevent injuries, according to this study). So we love that the Flyout gives the support we need without being too bulky or overly structured.
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The Flyout bra is made with a blend of polyester and spandex, and the fabric is fairly thick, which helps with support and compression. We like the thick fabric on this bra for high-impact activities, but it is admittedly a little cumbersome and less breathable than lighter-weight bras we tested. Still, we love the support this bra gives while remaining comfortable. We found this bra to fit true to size. Our tester who wears a medium in most sports bras found a good fit with a 6 in the Flyout.
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The Oiselle Flyout Bra is most similar to a racerback, but the unique design places it in a category of its own. Instead of thinner straps and big cut-outs on the back of the shoulders, this sports bra has extra-wide shoulder straps and more coverage in both the front and back, compared to other bras we tested.
This means that the bra has good, even support and does not have any pressure point areas. Though Oiselle’s website lists the bra as “medium impact,” we think it offers more support than all of the other medium impact bras we tested, and therefore think it is more of a high impact bra (even for our C/D cup tester). We found the compression and support is ample for high-impact activities for A-D cups.
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Along with the excellent strap design, this bra also features one large pocket at the back that fits most phones. This came in clutch on runs when we didn’t want to wear a vest, but still wanted to carry a phone for music or navigation. We prefer bra pockets in the back, but this can be a personal preference. There was some minor sweat accumulation on the phone after using the pocket for runs lasting a couple hours, but nothing unexpected or problematic.
Best High Impact Sports Bra: On Endurance
Bra size availability: XXS-XL (available in D-DD in each size)
Support/Impact: High
Style: Racerback with back clasp closure
Encapsulation or compression: Encapsulation and compression
Material: 83% recycled polyester, 17% spandex
Features: Molded cups, adjustable back closure, adjustable strap, bonded seams
What we liked: Excellent support for B-D+ cup sizes, no chaffing, flattering fit, ample adjustment options for a perfect fit
What could be better: Probably overkill for A-cup sizes
If you’re in search of a sports bra with enough support for the highest impact activities, like HIIT workouts, agility training, running, and more, we think the On Endurance Bra nails it. This bra offers high support even for D cup sizes with a fit that’s comfortable, flattering, and—importantly—adjustable.
We tested this sports bra while doing high-intensity agility training with lots of bouncing, and on long road and trail runs, and it performed consistently. If you’re a true A cup, this bra might be a little overkill. But for the B-D folks out there, this bra offers the best support without sacrificing comfort.
On Endurance
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We tested the On Endurance Bra over a variety of activities, but primarily used it for running and high-intensity gym sessions. We went on several long and short runs in this bra, and spent hours in the gym wearing it for weight training and agility training, which included box jumps and other explosive, high-impact exercises. This bra was our go-to pick for any activities where minimizing bounce was the highest priority.
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The On Endurance Bra is decidedly a high-support, high-impact sports bra. There are a lot (truly, a LOT) of sports bras out there that market themselves as high impact when they’re often medium support at best.
The Endurance doesn’t lie. It has a more classic-looking racerback shape with an added cutout in the back for breathability. But this is no basic racerback. The back has a double-clasped adjustable strap to dial in the band fit, and the shoulder strap is one continuous strap that’s also adjustable.
The cups are molded to create a bra that uses both encapsulation and compression for support—a winning combo for truly high-impact bras.
The Endurance bra is constructed with a mix of recycled polyester and elastane, which gives the bra its support and allows it to wick sweat.
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The Endurance Bra does a good job of managing sweat and heat, even for activities of longer durations. The open back design helps a lot with this. We also noticed that while a lot of truly high-support sports bras can feel like you’re wearing uncomfortable, bulky, rigid armor, this one does not. The molded cups are just thick enough for adequate support and provide a flattering silhouette, but they’re not overly cumbersome, and the bra isn’t too hot to wear even for very high-intensity workouts.
The back of the bra is certainly airier than the front, but that’s to be expected, especially with a high support design. We even tested this bra on a 10-mile run in the desert in full sun, and had no issues with excessive sweat retention in the material. Overall, we think this bra does an excellent job of balancing high support with comfort and breathability.
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While this isn’t a bra we want to keep on all day and lounge on the couch in (no high support bra is!), we aren’t so quick to rip it off after training is done. We think it’s one of the most comfortable and flattering high impact bras we’ve ever tested.
In our testing, we found this bra to fit true to size, and we love that it comes with two cup size options in each size (either regular or D-DD). The adjustable back clasp and shoulder strap also help with dialing in fit and comfort—another reason this bra is our pick for high-impact support.
Best Low Impact: Prana Becksa Bralette
Bra size availability: XS-XL
Support/Impact: low/medium
Style: crop racerback
Encapsulation or compression: compression
Material: recycled poly blend
Features: interior shelf bra, removable cups, UPF 50+
What we liked: coverage, comfort, style, versatility
What we didn’t like: a true low impact bra, this isn't going to work for higher impact activities
Good coverage, light compression, and maximum comfort: These are the critical qualities of an excellent low-impact crop bra, and the prAna Becksa Bralette delivers on all this and more. The prAna Becksa bralette is our favorite sports bra for yoga and other low-impact workouts for its coverage, comfort, and style—and wins our award for best low impact sports bra.
The Becksa Bralette is a racerback style longline crop bra with ample coverage, so it’s versatile enough to be worn underneath a shirt or on its own with leggings or other athletic wear. It has a soft, ribbed polyester blend fabric that offers light compression and an ultra-comfortable feel while maintaining technical features like breathability and sweat-wicking. This bra became our go-to for low-impact activities throughout testing, and it’s now a staple for our tester’s morning yoga practice.
Editor's Note: The PrAna Becksa Bralette has been discontinued but is still available at retailers, sometimes at a discount. We still recommend this sports bra while it is available.
Prana Becksa Bralette
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People on the smaller cup spectrum have long loved prAna bras. Unlike other prAna bras we’ve tested, this one offered enough support, coverage, and comfort for our D cup tester.
The Becksa offers the perfect amount of coverage, and even when we found ourselves in inverted yoga poses, the bra held everything in. We could focus on the workout movements rather than adjusting clothing.
The Becksa Bralette has a scoop-neck cut in the chest and a straight crop bottom, which we found to offer the right amount of coverage. This was helpful for situations where you don't need a lot of impact, but do want coverage, such as yoga.
The bra comes with removable pads, though our tester prefers wearing it without them.
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Beyond yoga, mellow hikes, and casual wear, this bra lacks the support of others in our test – which is what we would expect from a low impact bra. But, much like the low-impact Smartwool bra, this bra is comfortable enough to wear while sleeping.
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Despite the extra material from the high coverage cut, the Becksa Bralette performed well with sweat management. While it doesn’t offer quite as much breathability as the Smartwool, we never found ourselves soaking the bra with sweat, even during hour-long power yoga sessions.
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There are many brands that make a crop style bra these days. However, we found that the Becksa has better support and served cup sizes A to D better than the Conscious Crop.
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We think the Becksa Bralette fits true to size, with our B cup tester wearing a small and our C/D cup tester wearing a medium. The Conscious Crop had sizing issues for our C/D cup tester and customer reviews reflect this.
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If you’re looking for a comfortable, technical, and stylish bra with ample coverage and a cropped style for yoga and other low-impact activities, the Becksa is our top pick. If you're specifically shopping the brand, we also tested Title Nine's low-impact Wanna Sweat Racerback for A–B cups.
Best Compression Sports Bra: Ciele Athletics FSTBra
Bra size availability: XS-XXL
Support/Impact: Medium to high
Style: Crop tank
Encapsulation or compression: Compression
Material: Ciele COOLmatic nylon and spandex blend
Features: Two small side pockets, removable cups
What we liked: Great coverage and support, snack pockets, removable cups are easy to adjust
What could be better: Wish there were a phone pocket on the back
The Ciele FSTBra is the best compression sports bra. Many sports bras in our review use compression for support, which presses the breasts against the chest wall to avoid bouncing, unlike encapsulation, which uses structured cups to secure and minimize bounce.
But, of all the sports bras in our test, the FSTBra delivers the most effective compression without using encapsulation, too (like the On Endurance bra). If you prefer a high-coverage, compressive sports bra that could easily pass as a crop tank while still offering plenty of performance, the Ciele FSTBra is our favorite. We love wearing this bra on its own on hot summer days or under a tee.
Ciele Athletics FSTBra
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We tested the FSTBra on hikes and strength training sessions throughout the summer. On some hikes, we wore just the bra on its own as a cropped tank, and it was great even on very hot and sunny days. It also has enough coverage for even large cup sizes to move around in all sorts of positions (including yoga headstands) without worrying about any slips.
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The FSTBra is made with Ciele’s COOLmatic fabric that’s a blend of nylon and spandex. It offers great all-around medium-impact support, but for A and B cup sizes, this is likely to work well for high-impact activities, too. This makes sense since Ciele is primarily a running company. The high coverage and compression work wonders to minimize bounce in this bra, and even our D cup tester felt totally secure in it.
The cropped tank style means this has plenty of coverage and support, even when worn on its own. It helps that the shape and style are flattering for a wide range of body types and shapes.
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The synthetic fabric the FSTBra is made with does a good job of wicking sweat and staying cool when it’s hot. The amount of coverage means that there’s simply more fabric than most other bras in our test, so naturally it won’t be quite as airy as bras with less coverage. But that didn’t stop us from wearing it on hikes during some of the hottest days of summer.
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We found this bra to fit true to size. If you want extra compression and support for running, you could consider sizing down, but know that it may be a little tricky to get on and off if you do that. This bra is very comfortable overall, especially for the amount of support it offers. We often wore it during testing for all-day activities in the mountains.
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There are two small side pockets on the FSTBra that are large enough for a couple gels or other small nutrition items or other essentials. (We do wish there was a phone pocket in the back, as this bra design lends itself well to that, and because phone pockets are just so handy!)
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We also think the removable cup design in this bra is unique and very functional. Rather than having small slits on the side of the bra to adjust or remove the pads, these drop into pockets from the top (on the inside lining of the bra), making them super easy to adjust. This is the only bra our primary tester hasn’t immediately removed the pads from.
Best Sports Bra for Hiking: Branwyn Essential Racerback
Bra size availability: XS-XXL
Support/Impact: Medium
Style: Racerback
Encapsulation or compression: Compression
Material: 76% extra fine merino wool, 14% nylon, 10% spandex
Features: Odor-resistant merino wool material
What we liked: Incredibly comfortable, high merino content great for multi-day use, ample support for hiking and backpacking and all-around use
What could be better: Not as supportive as advertised, particularly for C-D cups (we would not call this a high-impact bra)
We love finding great sports bras made of natural materials, and the Branwyn Essential Racerback is one of our favorites, used regularly by multiple Treeline testers. It’s composed primarily of merino wool with some nylon and elastane for stretch and support.
This bra is ideal for hiking and multi-day activities, thanks to its high merino content and medium support. For our A-cup testers, this bra even offers enough support for jogging.
If you’re looking for an excellent all-around sports bra that’s particularly well-suited to hiking and multi-day adventures, put the Branwyn Essential Racerback at the top of your list. That's one reason two different versions of the Branwyn Essential are winners in our Best Hiking Sports Bras guide.
Branwyn Essential Racerback
The author, our primary tester, has spent hundreds of days testing dozens and dozens of sports bras during all seasons and for a wide variety of activities.
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Two primary testers—one A cup and one D cup—have used this bra regularly over a variety of activities, from running and hiking to skiing and mountain biking, plus plenty of yoga sessions and dog walks. But more than anything, multiple Treeline testers love this bra for hiking and backpacking. It’s truly a versatile bra, both in its use cases and fit across multiple shapes and sizes. We tested this bra in hot weather in the southern Utah desert and in sub-freezing temps in the mountains of Colorado, and we took it from the gym to deep in the backcountry.
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The Branwyn Essential Racerback is made with 76% merino wool, mixed with 14% nylon and 10% elastane for some stretch, support, and light compression. Wool on its own, while great at temperature regulation, is not a very supportive or compressive material, so the added synthetics are what make this bra capable of handling mid-impact activities like hiking, biking, and skiing. But we love that most of the material is natural and non-toxic.
Branwyn markets this bra as offering a high level of support, but we’d put it more in the medium support category, depending on your cup size. Our A cup tester is able to comfortably run in this bra and uses it often for higher-impact activities, while our D cup tester uses it only for lower-impact adventures, like hiking and yoga.
One thing we love about this bra is the coverage it offers. The material is wicking and breathable, but the high coverage both adds support and makes this bra a good option for C and D cups too. Other merino bras we tested were often as comfortable, but did not offer enough coverage or support for C and D cups. This bra truly works for the whole spectrum from AA-DD. (Even larger cup sizes are likely to find a good fit, given that this bra is offered in up to an XXL—just expect low-impact support.)
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Merino wool is naturally thermoregulating and great at wicking sweat. So, overall this bra does a great job with breathability. And, because it’s made of merino wool, it stays warm when it does wet out with sweat, making it great for cold-weather activities. Our testers often used this bra for ski tours and cross-country skiing and found it ideal for that.
The material is on the thicker side, so for truly hot weather it’s likely to be a bit too warm. But that thicker material is what helps give this bra its support and compression, so we wouldn’t want that to change.
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This is one of the most comfortable sports bras we’ve ever tested, hands down. Our testers wear it for backcountry ski tours, daily jogs, and long road trips or work days all the same. It’s one of those bras you put on when you want to be comfortable but still need some support—and it excels at that.
This bra does run slightly large, but not egregiously so. If you’re looking for a comfortable fit above all, go with your regular size. If you want a little more compression and a snugger fit, consider sizing down.
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Our A cup tester found this bra to offer plenty of support for jogs and trail runs. Our D cup tester found this bra to straddle the line between low and medium impact and used it for hiking, yoga, and skiing. Both testers find themselves wearing the bra all the time, though, whether it’s for getting outside or just sitting down to write about sports bras.
Best Sports Bra with Phone Pocket: Tracksmith Allston
Sizing: XS-L
Support: medium
Style: racerback
Encapsulation or Compression: Compression
Material: compressive nylon/ elastane
Features: Front and rear phone pockets
What we liked: comfort, excellent breathability, secure back pocket, front pocket fits phone or other small items
What we didn’t like: price, not enough support for larger cup sizes to function as a running bra
For those looking for a lightweight bra with solid pockets, the Tracksmith Allston is our favorite sports bra with pockets for all-around use. This sports bra also landed in the ranks as one of the most comfortable in our test, thanks to the lightweight fabric and simple, classic racerback fit. For that reason, it’s one of our favorite gear items ever and has made its way into our Best Gifts for Runners list.
Tracksmith Allston
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We tested the Allston bra on short trail runs, during hot summer mountain bike rides, and on several hikes and strength training sessions. While it’s not the highest-impact in our test, it is good for hot and sweaty workouts or adventures when you really need a bra that keeps you cool and dries quickly. Plus, we love the usefulness of the pockets for days when we ran without a vest.
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Tracksmith calls the Allston a medium-impact bra, and we agree with that. It works well for a running bra for folks on the smaller side of the cup-size spectrum; if you’re a D or larger, you may want to consider a bra with more support than this one.
This bra is made with a blend of nylon and elastane. It’s lightweight with a minimalist design, and it breathes well and wicks sweat with ease. The bra does not come with padding or molded cups, but this is part of what makes it so breathable and comfortable.
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The Allston Bra is among the lightest and most breathable in our test, and is especially great for hot days. The band is fairly thick and does take a little longer to dry than the rest of the bra, but we’re not complaining, given that the band offers essential support.
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Of course, one of our favorite features in this bra is the pocket options. There is one very spacious pocket in the front of the bra that can hold a phone or gels and other nutrition essentials. On the back, there is another phone-shaped pocket. Our C/D tester preferred to use the back pocket more than the front, but smaller cup sizes will likely benefit from all that pocket space in the front, too. We love that this bra offers very useful storage solutions while still maintaining a simple racerback profile and a lightweight feel.
best wool sports bra: Ortovox Rockin’N’Wool Sport Top
Bra size availability: XS-XL
Support/Impact: low
Style: racerback
Encapsulation or compression: compression
Material: 100% merino with elastic band
Features: all wool, super breathable
What we liked: only 100% merino bra we found, naturally anti-odor, warm when wet,
What we didn’t like: not designed for as much compression and support
When you’re deep in the backcountry, moisture management and odor control matter more than just about any other feature when it comes to your next-to-skin layers.
After dozens of days of extended, high-output activities in the backcountry, we’ve fallen in love with the Ortovox Rock’n’Wool Sport Top for low-impact multi-day activities in the wilderness.
Ortovox Rockin’N’Wool Sport Top
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We tested this bra for years on multi-day backcountry skiing trips, winter hiking, and cross-country skiing, and no matter how hard we worked, we stayed warm and dry. That’s one of the bonus qualities of wool over synthetic fabrics: It maintains its warmth when wet and doesn’t hold moisture for long (because the outer fibers of wool are hydrophobic and repel water). We haven’t tested this bra in summer temperatures, but given what we know about wool’s temperature management, and because this bra is so breathable, we assume it will perform well in a wide range of temperatures.
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In our research phase for this story, we came across a handful of bras that had merino wool blended with synthetic fabrics and bras that had bits of merino lining—but this is the only bra we found that's made of 100% merino wool (aside from the elastic support band). For this reason, the Rock’N’Wool Sport Top stands out as the most breathable, fastest-drying, and best sweat-wicking bra in our test.
However, because the central part of the bra is all wool with no spandex, nylon, or poly materials blended in, it is also the lowest impact bra in our test. Still, we think this is fine for backcountry pursuits when compression and support are not top priorities, but odor control and moisture management are non-negotiable. It offers enough support for light impact activities like hiking and backcountry skiing.
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The Rock’N’Wool Sport Top is a racerback style sports bra made entirely from sustainably sourced merino wool, with an elastic underband for light support. There is mesh-woven merino in both the front center of the bra and on the back for maximum breathability. This is the softest, most comfortable, and most breathable sports bra in our test.
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Along with its superior moisture-wicking and odor management, this bra stood out as the most comfortable in our test. It’s easy to forget you’re even wearing a bra, so much so that we even found it to be comfortable enough for sleeping. This combo of features makes the Rock’N’Wool ideal for multi-day backcountry adventures when space in your pack is limited and changing base layers doesn’t often happen, if at all.
The Rock’N’Wool Sport Top fits true to size with medium coverage and light compression. Our 34 C/D tester found the size medium to fit just right; though for larger cup sizes, the coverage is on the light side on the sides of the bra. (This was not an issue for our tester, but still, something worth noting.)
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The main downside to this low-support bra is the price tag, though it’s standard for merino wool garments to be pricier than their synthetic counterparts. We believe this bra is worth every penny for the right user. If you’re a backpacker, backcountry skier, or generally spend a significant amount of time in the backcountry and need a bra that keeps you dry and comfortable, the Ortovox Rock’N’Wool Sport Top is the best choice for you.
Best Sports Bra for Everyday Wear: Girlfriend Collective Paloma Racerback Bra
Bra size availability: XXS-6XL
Support/Impact: medium
Style: racerback
Encapsulation or compression: compression
Material: recycled plastic/spandex
Features: no padding, support band, UPF 45+, recyclable through company
What we like: comfort, super wide range of sizes, good color options, sun protection, made of recycled material, company take-back program, surprisingly good compression for a light bra
What we didn’t like: could be better at sweat wicking and breathability
The minimalist, stylish, comfortable Paloma Racerback Bra from Girlfriend Collective is a piece we reach for often for everyday wear. With Girlfriend’s impressive range of sizing, this bra earns a top spot for everyday use. We love the minimalist design and simple, modern style of the Paloma Racerback for just about any low- or medium-impact activities, from running errands to morning yoga and an afternoon gym session.
We also like the sustainability of the Girlfriend Collective sports bra. The synthetic fabric of the Girlfriend Collective Paloma sports bra is made from recycled plastic bottles and woven with spandex for added support.
Girlfriend Collective Paloma Racerback Bra
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We tested this bra on hikes, during strength training workouts, for tens of dozens of morning yoga sessions, and also often wore it out and about or lounging around the house.
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The Paloma Racerback is made with recycled plastics from water bottles (RPET) and spandex for stretch and support. It offers ample coverage, and we didn’t have issues whether we were doing jump squats or upside down in a yoga headstand.
We found this bra to blur the line between light and medium compression. It was enough for relatively high-impact strength workouts in the gym, though not quite enough for a trail run, and comfortable enough to wear while lounging around the house or running errands.
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When it comes to sweat-wicking, this bra is average and could be better. The double-layered material and thick underband make this bra comfortable without feeling cumbersome. But, for the same reasons, it doesn’t breathe as well as others in our test. Still, for more coverage during mellower activities, we love this bra.
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Another reason we love this bra is its wide range of sizes. The Paloma Racerback comes in sizes XXS-6XL. It runs true to size, and our 34C/D tester found the medium to be a perfect fit. The Paloma also has aesthetic, modern colorways that we love.
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The support is enough for a wide range of activities while remaining comfortable for all-day wear, though this isn’t the bra we’d choose for high-intensity workouts. But for a stylish, comfortable bra in a wide range of sizes to wear any day of the week, we love the Paloma Racerback.
Best Budget Sports Bra: Nike Swoosh
Sizing: XS-2XL
Support: medium
Style: racerback
Encapsulation or Compression: Compression
Material: recycled polyester/ Spandex
Features: removable 1-piece pad, pad pocket fits phone
What we liked: bang for the buck, enough support for all but the bounciest situations, functional, made of recycled material
What we didn’t like: other bras have better pockets
If you’re in need of a good all-around sports bra but don’t feel the need to splurge on it, the Nike Swoosh is a tried-and-true sports bra that has served Treeline testers well for years. This medium impact bra is simple but functional, and it offers enough support for all but the bounciest things you might find yourself doing. That’s why the Nike Swoosh wins our award for Best Budget sports bra in this guide, and also our guide to the Best Sports Bras for D+ Cup.
Nike Swoosh
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For many years, our tester and author of this story used this bra religiously. It was put through the wringer on countless trail runs, hikes, bike rides, strength training and high-intensity workouts, and more. She even trusted this bra for support on her first mountain marathon, and it got the job done without issue. It’s easy to grab this bra out of the closet for both its simplicity and functionality. The medium support compression style bra works well for most things.
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The Swoosh bra is made with a blend of polyester and spandex, which offers solid medium-impact support and good sweat wicking overall. We think the support in this bra is enough for A-B and even some C cups to run in, and for larger cup sizes it still offers enough support for most activities aside from the highest-impact ones.
When we say the design of this bra is simple, that doesn’t mean it’s lacking. It has a single removable pad that adds shape, and the one-piece design makes it easier to keep track of and take in and out. The same front pocket that holds this padding is also large enough to fit a phone. We prefer bra pockets on the back rather than the front, but this is still nice to have in a budget-oriented bra.
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Our tester sized down in one of her Swoosh bras for a more compressive fit, and found it to work well even for high-impact activities. Overall, we’d say that this bra fits true to size. Our tester didn’t have any comfort issues while wearing this bra, even on long adventures in the mountains. But, especially with the sized-down fit for support and compression, it wasn’t a bra she wanted to wear once the activities were over and it was time to rest and relax.
Best Recovery Bra: Paka Essential Scoop Bralette
Bra size availability: XS-XXL
Support/Impact: Low
Style: Square neck
Encapsulation or compression: Light compression
Material: 46% Tencel, 32% organic pima cotton, 13% royal alpaca, 9% BPA-free spandex
Features: Natural materials
What we liked: Made with entirely natural and non-toxic materials, incredibly soft and comfortable, flattering fit
What could be better: Very low support
You’ve just finished a great workout, and you’re ready to get out of your sweaty sports bra. Whatever you put on next, it better be comfortable. And the Paka Essential Scoop Bralette is definitely comfortable. And equally important, it’s made of a blend of natural materials that work together to achieve that silky soft comfort. That’s why this bra is our favorite recovery bra. The support is very low, so don’t expect to go sprinting in this thing. But the comfort tops the charts, so after you’re done sprinting, you’ll want to put this on to stretch afterward.
Paka Essential Scoop Bralette
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Testing this bra was, well, fairly easy. Our testers have worn it regularly for several months, for lounging around the house on rest days or after hard workouts, on dog walks and even road trips. It’s a go-to when comfort is the top priority, or when we just want the comfort of knowing that natural fibers are our next-to-skin layer.
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The materials are one of our favorite things about this bra. While there is a little spandex (it’s BPA-free!) in there for just a touch of stretch and support, everything else is a natural material, including Tencel, organic cotton, and alpaca fibers. This combo makes for a bra that is luxuriously soft and so comfortable to wear.
For all the comfort this bra offers, don’t expect much support. This wins our best recovery bra award for a reason—it’s ideal for lounging and rest. For smaller cup sizes, maybe a little yoga.
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Ideally, the sweating is over by the time you put this bra on. But nonetheless, the natural fibers it’s made of do make this bra very breathable. Tencel and cotton are both incredibly breathable fabrics, while alpaca is both breathable and odor-resistant. It doesn’t wick sweat as well as wool or synthetic bras, given the cotton content, but that is not really an issue with a recovery bra.
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If this bra weren’t incredibly comfortable, it would have no business getting our top pick as a recovery bra. It fits true to size and offers higher coverage for A and B cups, and medium coverage for C and D cups.
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Another feature we love about the Paka Essential Scoop sports bra is how flattering the fit is. It both looks good and feels good, and we think that’s a big win.
Other sports bras we tested
Title Nine 3 Reasons Bra
Bra size availability: 32 – 40/ C-DD
Support/Impact: High
Encapsulation or compression:
Fabric: 72% nylon, 15% spandex, 13% polyester
Closure: Hook and eye back closure
Removable cups: No
Wireless: Yes
The 3 Reasons sports bra is best for C and D cups looking for high-impact support, and works well for DD+ cups who need medium to high-impact support with good coverage overall.
As we write in our Favorite Sports Bras from Title Nine, the 3 Reasons is also a great option for any folks who want a solid sports bra with plenty of adjustment options and/or the option to use as a nursing bra. There are velcro adjustments on the straps, which is helpful for dialing in the fit, but can cause some chafing if not adjusted just right. For most A-C cups, this bra will likely be overkill, but for folks with D and up cups who want adjustability in their sports bra, this is a good option.
Title Nine 3 Reasons Bra
Bra size availability: 2-14
Support/Impact: Medium
Style: Strappy back racerback
Encapsulation or compression: Compression
Material: Polyester and spandex
Features: Removable cups
This one’s for the folks who appreciate some fun design flair in their sports bra. The strappy back is cute while still offering medium impact support, even for C and D cups. While it’s marketed as a run bra, we don’t think there’s enough support there for running for anyone beyond an A cup. But still, it’s a nice-looking bra to wear under a tank or on its own for a variety of mid-impact activities.
Oiselle Open Lane Bra
Some sports bras have fun, strappy backs, like the Oiselle Open Lane, though that style detail often means a sacrifice in support to some extent.
Bra size availability: 2-14
Support/Impact: Medium to high
Style: Open back with clasp
Encapsulation or compression: Compression
Material: Polyester and spandex
Features: Open back design with back clasp for adjustability
The Squared Up bra surprised even our larger-chested testers with its support. While it’s not quite high impact, it provided enough support for our D cup tester to use on short runs and strength training sessions in the gym. Plus, we found this bra to have a very flattering look overall. If you’re looking for a supportive open-back option that’s great at mitigating back sweat, this is a great option.
Oiselle Squared Up Bra
We love the airy open back design on the Oiselle Squared Up bra.
Bra size availability: XS-XXXL
Support/Impact: Medium to high
Style: Racerback
Encapsulation or compression: Compression
Material: Nylon and spandex
Features: Back phone pocket
The Janji Ascend bra is another medium to high-impact option that is ideal for runners. It wicks sweat well and has a handy phone pocket on the back. It’s not quite as high support as the On Endurance bra, and it does not have molded cups like the Endurance does, but if you’re a smaller cup size looking for an excellent high-impact option without a clasp back or molded cups, this is a great one to consider.
Janji Ascend Sports Bra
Bra size availability: XXS-XXXL
Support/Impact: Medium to high
Style: Crop tank
Encapsulation or compression: Compression
Material: Nylon and spandex
Features: High coverage, 3 pockets
Of all the dozens of sports bras we’ve tested over the years, none have boasted as many useful pockets as the Pinnacle RD Ultra Bra. There are three total: one back phone pocket, one front pocket, and a pass-through pocket at the back that can store a layer or gels and nutrition. We also love the thin and breathable fabric that isn’t overbearing. For larger cup sizes, this will likely err on the side of medium support, but it’s another excellent lightweight option for running with more pockets and more coverage than the Tracksmith Allston.
Unfortunately, it can be hard to find in stock, so if you see it in your size, consider grabbing it while available.
Janji Pinnacle RD Ultra Bra
Bra size availability: XS-XXXL, with options to match up different band and cup sizes
Support/Impact: Medium
Style: Racerback
Encapsulation or compression: encapsulation
Material: Polyester, cotton, and spandex
Features: Unique light and compressive fabric
The Lume Six Alta Bra has received mixed reviews from Treeline testers. Some swear by it, while others could do without. It’s a unique design made with Lume Six’s fairly stiff and supportive (yet quite breathable) DreamSupport fabric. But we’ve found this bra isn’t particularly flattering, and a lot of the seams can be seen under a shirt. Plus, it’s quite expensive for a bra with limited features and no pockets. It does offer more support in a lighter-weight fabric than many we’ve tested, though, so if that’s appealing to you, this may be worth a try. Plus, there are lots of sizing options with this bra, allowing you to match different band sizes with different cup sizes, which is a feature we very much appreciate.
Lume Six Alta Bra
Bra size availability: 32-40/C-DDD
Support/Impact: Medium/high
Style: Back clasp
Encapsulation or compression: Compression
Material: Nylon, polyester, spandex
Features: adjustable back closure, adjustable straps, wireless
The Title Nine Tech Athena 2.0 sports bra was amazing once we got used to the higher level of compression and support—the fit and comfort is perfect for larger busts, especially for hard workouts and lots of high-impact running. While this sports bra is likely overkill for A-C cups, for D cups (and up) this sports bra is very comfortable, fits true to size, and offers a strong level of support with no wires, no digging in. If you're above that or want more high-impact support, we cover it in our guide to the best sports bras for D+ cups.
Title Nine Tech Athena 2.0 Sports Bra
Bra size availability: 2-14
Support/Impact: medium/high
Style: wide-strap racerback
Encapsulation or compression: compression
Material: nylon, merino wool, polyester, elastane, lyocell
Features: removable pads
Thanks to the excellent compression and support, the Smartwool Intraknit scored well in our sports bra tests. We’ve used and tested iterations of this bra for nearly a decade on hikes and backpacking trips, bike rides, and more.
It’s wonderfully comfortable and surprisingly durable, given its merino composition. If you’re looking for a comfortable, low to medium impact bra with merino wool to help with odor resistance, this is a great choice.
In our testing, we often found the most comfortable sports bras to be the ones with designs that weren’t overcomplicated. This basic racerback design has straps that are wide enough to be supportive without being cumbersome, and they hit in just the right spot, meaning they don’t cause any pressure or pain in the shoulders or neck.
I like the seamless design of the Smartwool Intraknit bra, which means you basically forget about it under your backpack straps.
For backpacking specifically, when I’m wearing a heavier pack and the same bra for days on end, I like something simple, extremely comfortable, odor resistant, and reasonably supportive.
The Smartwool Racerback hits all those marks on the nose. The wool blend fabric means I can wear it for an entire trip and not worry about smell, but the added nylon and polyester give the bra a little more support.
Smartwool Intraknit Racerback
Bra size and cup size availability: 30AB-40DDE
Support/Impact: medium impact
Style: high neck racerback
Encapsulation or compression: compression
Material: polyester/spandex
Features: Removable cups, cell phone pocket, ribcage pocket for keys/ID
Clever designs are great–if they work. The Brooks 3-Pocket Run Bra not only worked well as a high-impact sports bra, but the pockets held keys, phones, and even credit cards without extra bulk or chafing. We appreciated the high-cut coverage design when running and jumping to prevent spillage without the bra feeling constrictive. The Drive 3-Pocket has enough compression the chest compact without restricting deep breaths.
It’s our former winner for best high impact sports bra. This workout bra outperformed most in our test for the highest support for running and other high-impact activities. If you’re looking for a high support bra for running and gym workouts and every high-impact activity in between, the Brooks 3 Pocket is our top choice.
Brooks Drive 3 Pocket Run Sports Bra
Brooks is a running company that was one of the original inventors of the sports bra. The Brooks Pocket Run is one of the bestselling sports bra models at REI and is Brooks’s most popular model of sports bra.
A compressive, four-way stretch fabric helps hold everything in place. This bra offers ample coverage for a structured and supportive sports.
The fabric allows ample airflow, so back sweat was manageable. Overall, the material dries pretty quickly, which is what we want for a high impact / running sports bra.
We liked that the Brooks 3 Pocket Run has a wide bra size range for a high impact / running sports bra model with waistbands running from 30 to 40 and cup size from A to E. We had three testers on this bra, an A cup, a C-cup, and a D-cup. Our D-cup reports it fits loosely, but the A cup and C cup testers found it to be snug. Moral of the story: try it on first or order two sizes from a store with easy returns.
Ultimately, it is no longer winner for best high impact sports bra because the Oiselle Flyout is more comfortable. When our testers tried it on for the first time, it took some effort to get it on. During the first workout, the bra felt snug, but the fabric does give a bit; this is how a high-impact running bra like this should fit. After another wear and a wash or two, the bra fits perfectly snug. It has maintained its support and compression over many runs to plyometric exercises in the gym.
When it comes to sweat management, this running bra does incredibly well, which is great for running. It was only bested by our overall best sports bra for wicking moisture (that goes to the Ortovox, which is a low-impact sports bra). It’s also among the fastest drying bras we tested.
This bra is also a winner in our Best Sports Bras for D+ cups. The difference is that for people with D cups and up, it’s better suited as a medium impact bra. Most people with AA-C cups find the design and high cut work well together as a high impact sports bras. After all, this bra is specifically designed for running. Still, if you are concerned, check out our high impact and running winners in our Best Sports Bras for D+ cups.
Kari Traa Froya
Bra size availability: XS-XL
Support/Impact: low
Style: racerback
Encapsulation or compression: compression
Material: poly blend/wool lining
Features: removable cups, wool lining
The Kari Traa Froya bra is another go-to choice for our testers when in need of an all-around low and medium impact bra. We love the merino wool lining inside the bra for its sweat-wicking capabilities and the bra’s overall comfortable compression.
The one downside to this bra is the sizing. Our C/D cup tester originally ordered a small, per the website’s size chart, but could barely get it on. She exchanged for a medium which fit much better, though a large might have been more comfortable.
Ultimately, the Athleta Ultimate bra gets our top pick award for overall medium impact in part for accurate sizing and comfortable fit and in part for a heap of positive customer reviews. Nonetheless, we still love the Froya bra; just be sure to size up if you get one.
Kari Traa Froya
Bra size availability: 28-40 / B-J
Support/Impact: high
Style: back clasp underwire
Encapsulation or compression: encapsulation
Material: poly blend
Features: underwire, clasp back, racerback conversion, molded cups, adjustable straps
Most of us who use sports bras at Treeline prefer them without an underwire, but we understand that some do want that extra support and shape. We tested the Panache Wired Ultimate High Impact Sports Bra since it has many positive customer reviews. When we put it up against the Lululemon Enlite Weave, however, the Lululemon was more comfortable, more supportive, and had far, far better style. For a high-impact bra with shape and lift, we highly recommend the Enlite Weave. But, if underwire is a must, the Panache Wired Sports Bra is a good option.
Panache Wired Ultimate High Impact Sports Bra
Bra size availability: 32D - 40D
Support/Impact: high
Style: racerback with clasp
Encapsulation or compression: both
Material: nylon elastane
Features: adjustable straps, molded cups, hook and clasp closure
The Lululemon High Support Energy Bra was another great high-impact bra that held you in, provided separation, and didn’t give you the uni-boob look. The strappy back looks good but wasn’t the most comfortable design compared to other bras that we tested. The adjustability of those straps, however, made for a great high-impact bra choice that didn’t look like your grandmother’s bra. Still, we liked the Lululemon Enlite Weave better as a workout bra due to the sweat-wicking fabric and wide straps.
Lululemon High-Support Energy Bra B-DD
The Ortovox Rock ‘n’ Wool Sports bra is made of wool and designed for multi-day activities. Most people find that no one sports bra will work for all activities, so choose the sports bra based on what you intend to do in it and features you need.
The Girlfriend Collective Paloma sports bra is made of recycled bottles and is designed for everyday and low and medium impact use. We recommend choosing a sports bra based on the activities you are going to do while wearing it.
What to Look for in a Sports Bra
Sports bras are not like your average t-shirt bra from the department store. Finding a bra that offers the right balance of features, like support and moisture-wicking, can often be more of a challenge than finding a good regular bra to wear to the office or on a date night. We demand much more from our sports bras than our everyday ones, so it’s important to know what design features, fabrics, and styles to look for.
Design and Style
First off, it is helpful to understand the different types of sports bras that exist on the market. There are two primary categories to be aware of: encapsulation and compression. Often, there will be bras that offer features from both of these categories, though others will fall squarely in one category or the other.
Encapsulation vs. Compression
Encapsulation often refers to a more structured style of sports bra. With this style, separate cups hold and shape each side separately. A compression bra focuses on a snug fit, often without shaped cups, to hold everything in. Some bras offer a mixture of the two designs.
The advantages to encapsulation bra designs include a more shaped look, while compression styles often relieve more bounce during activities. It helps to know your priorities when selecting a sports bra. If you’re looking for a bra to wear for mellow, low-impact activities like walks and easy gym sessions and want a bra that will offer shape and lift, an encapsulation bra style will be best. If minimizing bounce is a must (such as for medium or high impact activity), compression bras will be better. However, compression bras will likely not offer as much lift and shape as an encapsulation bra. However, several bras on the market offer the best of both worlds. We tested all ends of the spectrum for this review.
There are many different strap designs, including the classic racerback style, scoop back bras with back clasps, and many variations in between. Some sports bras come with adjustable straps whereas some are fixed. Deciding on design features like this often comes down to intended use and personal preference.
Impact Level
Impact level is another crucial factor to consider when looking for a sports bra. Generally, impact levels are categorized as low, medium, and high. The higher the impact, the more support you’ll get for intense activities.
Fit
Fit is crucial in any bra, and this is especially true with sports bras. Some brands and certain styles use a more basic sizing range (small, medium, large, etc.), while others offer sizes with a specific band and cup measurement. No matter how the sizing works, you want the bra to fit you well. A high-impact bra should offer ample coverage and feel snug while remaining comfortable. Often, these bras feel a touch too small upon first wear, but they fit perfectly after a wash or two. Lower impact bras will offer a more relaxed fit with less support.
Material
How well a sports bra performs depends significantly on the fabric it’s made from. Some fabrics offer more shape and support, while others work hard to wick sweat. The bras we tested for this review come in a wide range of fabrics, from 100% recycled synthetic fabrics to merino wool. Synthetic fabrics typically offer more stretch and support; merino wool has excellent performance for moisture and temperature management and tends to fend off-odor well, though this material on its own doesn't offer as much support.
Depending on your activity and intensity, you’ll want different features from your sports bras, even if they are the correct size.
Understanding Your Cup Size
Explanation Of Cup Sizes (AA To D)
Sports bras come in a variety of cup sizes to cater to the diverse body shapes and bust sizes of anyone who is active. As with non-sports bras, cup sizes are denoted by letters, ranging from AA to D and beyond, although sometimes sports bras use S-M-L-XL.
Here's what you can expect for each sports bra size to help you get the right level of support and comfort.
AA cup: Sports bras designed for AA cup sizes typically have little to no substantial support since this is often not necessary with this size.
A cup: A cup sports bras offer slightly more support than those designed for the smallest cup sizes (AA), but support is overall still minimal.
B cup: B cup sports bras often have additional features to add support for athletic activities.
C cup: Sports bras for C cups often have similar features to those made for B cups, but typically offer a bit more support for higher impact activities.
D cup: D cup sports bras typically have more features, including wider straps and more robust cups, to keep bouncing and discomfort at bay.
Why Getting An Accurate Measurement Matters
Just like with regular bras, it’s crucial to get accurate measurements to ensure you’re buying a sports bra in the right size. Having the wrong size can lead to discomfort and a lack of support. Be sure to take your own measurements and then compare them carefully to the size chart for each specific bra to find the best fit.
Band size
To find your band size, use a soft tape measure to measure around your rib cage and back, just under your bust. You should do this without a bra or other clothing on; the tape measure should be snug against your skin but not tight. Take down the measurement in inches. Because band sizes come in even numbers, if your measurement is even, then that is your band size. If you measure to an odd number, round up to the nearest even number to find your band size.
Cup size
To find your cup size, you’ll measure around the fullest part of your chest in the same way you did for your band measurement. Be sure that the tape measure is not cinched too tightly here to get an accurate number. Then, subtract your band measurement from this measurement. The difference will be your band size. A difference of 0 inches denotes an AA cup, 1 is an A cup, 2 a B, 3 a C, and so on.
The Oiselle Flyout sports bra was designed for support and comfort for running.
How your cup size impacts what bra to get
Some sports bras offer cup and band sizing while others come in standard small, medium, and large. Either way, it’s good to know your cup size to ensure you’re getting the right bra. Some sports bras will state what cup sizes they’re designed for (i.e. a bra made for AA-C cups, or one specifically for D and larger). This helps to find the right size when cup and band sizing is not used. Of course, if cup and band sizing is used, then these measurements will quickly lead you to the appropriate size.
Support
Sports bras designed for smaller cup sizes often offer different levels of support than those made for larger ones. Knowing both your own cup size and the size the bra was designed for will help you to find a supportive fit.
Comfort
If you end up with a sports bra that is not suited to your cup size, then it’s likely to be uncomfortable, especially if it’s too small for your cup size. Ensure that you get good coverage from the bra with it being just snug enough to offer ample support.
Performance
Sizing your sports bra correctly will ensure the best performance. If you have good coverage, a comfortable fit, and the right amount of support, you should be able to forget about the bra and focus on your workout.
Care and maintenance tips for sports bras
We liked the mesh panel and half moon shape on the back of the Outdoor Voices Doing Things Bra. This design contributed to its breathability, but requires extra care to prevent snagging.
Sports bras take a beating, so a little care goes a long way toward keeping them supportive for longer.
Hand washing is always going to be gentler than a machine, since it won't stretch out the elastic and compression fabric the way agitation can. If you do use a machine, put bras in a mesh bag so they don't tangle with other laundry or get stretched out of shape, and unfasten any hooks first so they don't bend. Use a gentle detergent without harsh chemicals or added fragrance, since these can break down technical fabrics faster over time.
Skip the dryer if you can. Heat is hard on stretch fabrics and compression materials, and hang drying or laying flat will noticeably extend the life of a bra. Check the label for specifics, but when in doubt, air dry.
You don't need to wash a sports bra after every single wear. If it's genuinely sweaty or dirty, wash it. If it barely broke a sweat, you can get another wear or two out of it, which also means less wear and tear over its lifespan. For storage, bras without molded cups can be folded, but molded cups hold their shape better laying flat with the cups facing up rather than folded or crushed.
A few habits that help bras last longer overall: rotate between a few bras rather than wearing and washing the same one constantly, change out of a wet bra as soon as you can after a sweaty workout or water activity since prolonged dampness can permanently stretch the fabric, and do a quick check every so often for stretched-out bands, fraying straps, or hooks that aren't holding like they used to. Those are the signs a bra has reached the end of its useful life, regardless of how long you've had it.
We tested the Smartwool Seamless Racerback (left) and the Smartwool Seamless Strappy Bra (right). The Seamless Racerback left has been used for several years, the Seamless Strappy is new to us for this season.
FAQ
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Most sports bras need replacing every 6–12 months, depending on how often you wear and wash them. Signs it’s time for a new one include stretched-out bands, loss of compression or support, fabric thinning, or straps that no longer stay in place. If a bra no longer limits bounce or feels supportive during movement, it’s past its prime.
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Sometimes—but it depends on the activity and your support needs. Lower-impact workouts like yoga, hiking, or strength training often work well with lighter-support bras, while running or high-impact workouts usually require more structure and compression. Many people benefit from owning at least two bras: one for low-impact and one for high-impact activities.
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Proper fit is the most important factor. A bra that’s too tight, too loose, or poorly shaped can cause friction, especially under the band or along seams. Look for soft, flat seams, smooth fabrics, and wide bands that stay in place. If you’re prone to chafing, moisture-wicking materials and seamless designs make a noticeable difference.
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Yes. Sports bras designed for AA–D cups typically rely more on compression and streamlined construction rather than heavy underwires or multi-panel structures. This often results in lighter, more flexible bras that work well for a wider range of activities—but still provide enough support when properly designed.
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Yes. Many brands now offer extended band sizing while still catering to smaller cup volumes. The key is focusing on band fit first, since support primarily comes from the band—not the straps. A well-fitted band with a supportive fabric can work extremely well regardless of cup size.
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Yes. Some sports bras are designed specifically for nursing or pumping and combine moisture-wicking fabrics with easy-access designs. These tend to work best for low- to medium-impact activities and may not offer the same level of support as traditional high-impact sports bras.
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A sports bra should feel snug and supportive, but never restrictive. You should be able to breathe deeply and move comfortably without the band riding up or digging in. If you feel pinching, numbness, or pressure points, the fit is likely too tight—or the wrong shape for your body.
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Absolutely. An ill-fitting or under-supportive sports bra can lead to discomfort, distraction, chafing, and even back or shoulder pain over time. The right sports bra helps you move more freely, stay comfortable longer, and focus on your activity instead of adjusting your gear.
Some of the sports bra models we tested, side-by-side.
How We Researched and Tested
We started broad, researching nearly 50 sports bra models by digging into specs, customer reviews, and mentions in outdoor and sports media. From there, we narrowed the field to 25 bras and tested them side by side with two testers, one A/B cup and one C/D cup, so we could evaluate fit and support across a real range of body types rather than relying on a single perspective.
Testing wasn't limited to a single activity. We wore these bras hiking, trail running, doing yoga, lifting in the gym, cross-country skiing, backcountry skiing, downhill skiing, lounging around the house, and even sleeping in them, since several turned out to be comfortable enough for that too. Some testing happened over the course of years rather than weeks, with certain bras staying in regular rotation for backpacking trips, bike rides, and everyday training long after our initial review.
Some testing was activity-specific and pushed the bras hard, including race day use for our runners and multi-day backcountry trips where a bra can't be changed out for days at a time. For bras with a wide size range, we used multiple testers across different cup sizes specifically to check whether fit held up consistently, which surfaced real differences between how the same bra performed on different bodies.
We also tested for the failure points that matter most in real use, not just on paper. That included checking how bras handled sweat accumulation during multi-hour activities, how fit changed after washing since some fabrics loosen or tighten with wear, and where manufacturer size charts didn't match real-world fit. When we found a mismatch, we noted it so readers know to expect it.
Because sports bra fit and function depend so heavily on body type and personal preference, we intentionally tested more models than we could ultimately award, so that people across the AA to D range could find genuine, tested recommendations rather than a single one-size-fits-most pick.
- Trail runs and race-day testing
- Hiking and multi-day backpacking
- Yoga and strength training
- Backcountry, Nordic, and resort skiing
- Tested across A/B and C/D cup sizes
- Support for different impact levels
- Comfort during extended wear
- Breathability and sweat management
- Fit and sizing accuracy
- Odor resistance and durability
Author’s Expertise: Why You Can Trust Us
Stasia Stockwell is an avid outdoor adventurer who skis, bikes, runs, hikes, backpacks, and does yoga any chance she gets. Because of this, she’s always on the hunt for the perfect sports bra for any activity. She has years of apparel testing and review writing under her belt and brings all that experience to this review.
Stasia feels far more at home on a high alpine ridge than a busy city street as a true mountain dweller. She writes primarily in the outdoor and adventure travel realm, focusing on destinations content and gear reviews that are intriguing and informative for newcomers and experts alike.
Stasia has worked as a backpacking guide in southeast Alaska and written for BACKPACKER, REI Co-op Journal, The Dyrt, and others. She’s a lifelong skier, mountain biker, backpacker, and trail runner who’s passionate about lowering barriers to entry for outdoor sports. She hopes to inspire people to love and respect the wild natural world through her work.
More of her work and adventures can be found on her website.
To see all Stasia’s Treeline articles, see her author profile.
As a freelance writer and gear tester, Stasia and Treeline Review are not sponsored, an ambassador, or an employee of any companies mentioned here. This review is unbiased, and we do this to help you find the best product for the best price. Treeline Review doesn’t accept sponsored content, native advertising, or paid reviews.
