Best Plus Size Swimwear of 2025: 6 Models That Actually Fit
One-piece, two-piece, rash guards and swim shorts made for bigger bodies
I love how comfortable and simple the design and fit is in the Maui Bikini Top.
June 12th, 2025, updated with a new winner, new section on fit, updates on how we researched and tested, and answering common questions about plus size swimwear
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I have spent years searching and testing size inclusive swim and athletic wear for people above a 3X to find the best plus size swimwear. After extensive testing in pools, rivers, lakes, and the ocean, while swimming and paddling, the Superfit Hero Long Sleeve Rash Guard is the best rashguard, the Lands' End Tugless is the best plus size one piece, and Andie Swim has the best plus size two-piece top and bottom swimsuits.
I grew up swimming, became a competitive swimmer when I was 7, and have stayed in pools, rivers, lakes, and oceans ever since. I swam competitively, played water polo, and lifeguarded as a young adult. These years spent near the water were some of my favorites, but they were also often uncomfortable as the swimsuits I had to wear were ill fitting.
More often than not, plus size swimsuits were too tight and did not make me feel confident or capable at all.
As I've gotten older I have tried on dozens of suits to find the best plus-size swimsuit for being active. In this article, I found and tested brands that are making swimwear for plus sized folks to not only feel good in the water, but worthy of being seen.
This review of plus-size swimwear includes one and two pieces, rash guards, sun shirts, and board shorts and water shorts—all made for plus sized and fat people to recreate and move comfortably in and near the water. There is so much more progress to be made in the field of plus size swim and paddle wear, but I hope this guide helps you find something that will get you in and on the water with comfort and with the knowledge that you are strong, capable, and worthy of showing your body to the world.
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Comparison table
| PLUS SIZE SWIMWEAR | TREELINE AWARD | TYPE | MSRP* | SIZE RANGE | UPF | MATERIALS |
|---|---|---|---|---|---|---|
| Superfit Hero Long Sleeve Rashguard | Best rash guard Read why |
Rash guard | $98 | 7X-1X or L | 50+ | 74% Nylon / 26% Spandex |
| Lands' End Tugless One Piece | Best one piece Read why |
One piece | $85 | 2-26 | 50+ | 88% nylon/12% spandex |
| Andie Swim Maui Top | Best two piece top Read why |
Two piece top | $74 | XS-XXXL (in select colors and fabric styles) | Not listed | 62% recycled nylon, 23% recycled |
| Andie Swim The High Waisted Cheeky Bottom | Best two piece bottom Read why |
Two piece bottoms | $56 | XS-XXXL | Not listed | 90% nylon, 10% spandex |
| Columbia Sandy River Shorts | Best swim shorts Read why |
Board shorts/ swim shorts | $45 | 1X-3X | 30 | 100% Nylon Perfecta Plus II |
The Winners
Best Rash Guard: Superfit Hero Long Sleeve Rash Guard
Type: Rash guard
Price: $98
Materials: 74% Nylon / 26% Spandex
Size Range: 7X-1X or L
UPF: 50+ UPF
What we liked: available to size 7X, attractive, fits well, 50+ UPF rating, no drag while swimming, option for full coverage up to the neck
What we didn't like: price, slower to dry
In no uncertain terms, I love the Superfit Hero Long Sleeve rash guard for its fit and performance. It feels completely comfortable in the water and while moving through current and slow water alike it feels like a second skin. I have been using it nearly every time I paddle and I am comforted by the high UPF protection and the coverage that keeps my arms cool from the hot sun. Superfit reaches folks up to a size 7X or a size 40/44 and also makes swim tops and bottoms, leggings, shorts, and other athletic materials.
Superfit Hero Long Sleeve Rash Guard
The Superfit Hero Long Sleeve Rash Guard provides strong sun protection.
The rash guard is attractive. I had assumed a rash guard would not be cute. But with adjustable ties at the hips to customize the length and snugness of the top, it looks good. It has long sleeves and a half zip design for better sun protection and fit.
I am on the taller side at 5’9” and found the full length to provide great coverage and the arms actually reach down to my wrist and aren’t too short, which is a common problem for me.
The rash guard is made with Superfit’s Sweat/Swim™ technology and is completely opaque. It is meant to be worn over a bikini, swim top, or one piece suit and does not come with a built in bra or chest support—though that is common among rash guards and not lacking on Superfit Hero’s part.
The adjustable side cinches make Superfit’s Rash Guard easily versatile in length. I cinch up while swimming and leave uncinched while paddling or when I need more coverage.
The rash guard is made with flat lock seams to prevent chafing and offers 50+ UV protection. When fully zipped, the rashie goes right up to the neck for a full coverage look.
I have worn this rash guard while stand-up paddle boarding, kayaking, and swimming in both calm and rapids. While swimming, the rash guard doesn’t drag in a way that is distracting but is not made for competitive swimming and does sag a little while completely wet.
It does take longer to dry because it’s a larger garment, so I wouldn’t bring it on a backpacking trip where I’m needing my swimwear to dry before I pack out. That being said, I probably wouldn't bring any rash guard on a backpacking trip for that reason.
Although the Superfit Hero rash guard is pricier, the inclusive size range and excellent features make the price worth it in my opinion, and supporting a brand that is making swimwear for plus sized athletes is invaluable.
Best One Piece Swimsuit: Lands End Tugless One Piece
Type: One piece
Price: $85
Materials: 88% nylon/12% spandex
Size Range: 2-26
UPF: 50+
What we liked: sleek enough for swimming laps and comfortable enough for kayaking, size inclusive, comfort and utility, no sagging or rolling
What we didn't like: slow to dry
The Lands’ End Tugless One Piece is a simple, solid one-piece swimsuit that can be used nearly anywhere and for most functions. It is my new favorite suit for swimming laps and working out in a pool. I’ve taken it kayaking as well and the fit isn’t too tight, which I often find with suits made for lap swimming. It is comfortable when sitting and moving even when the suit is dry.
Lands End Tugless One Piece
Sitting on the body comfortably when either dry or wet, Lands' End made an easy to wear suit that is size inclusive.
This suit is also the most size inclusive on this list, going up to a size 26 that fits generously. I wore my usual size 22 but could have sized down. In a world where most suits top out at a 3X, which should be the bare minimum, I am happy to see that outdoors and activewear brand Lands’ End is making their suits available to a wider array of people.
With a simple scoop neck and full coverage design, the one piece suit drills down to what matters most: comfort and utility. During laps, I didn’t feel the suit sagging or rolling, and I didn’t have to think about it as I swam. The suit is made with Chlorine-resistant spandex, and with proper care will last longer than suits made without it.
The textured fabric feels soft against the skin and hasn’t faded yet after a summer's worth of swimming laps regularly so I’m confident in its durability. The fabric is thick, and doesn’t dry as quickly as my other suits, so it’s best suited for pool swimming rather than swimming on camping or backpacking trips. It is possible the fabric's texture leads to slower drying. This suit also comes in a non-textured version, so you may want to try that if quick drying is necessary.
The Lands’ End Tugless One Piece is a simple yet effective suit that has the kind of fit that enables you to stay in the water longer and return to it easily.
Best Two-Piece Swim Top: Andie Swim Maui Bikini Top
Type: Two piece top
Price: $62-$76
Materials: 62% recycled nylon, 23% recycled polyester, 15% spandex
Size Range: XS-XXXL (in select colors and fabric styles)
UPF: Not listed
What we liked: simplicity, extremely durable, no pinching or sagging, adjustable straps
What we didn't like: no UPF listed, brand could be more size inclusive
My two piece suit from Andie is largely the reason that I prefer two pieces for my everyday swimming and paddling usage. I first bought my Maui Bikini Top in 2022 and have taken it on countless excursions to lakes, pools, oceans, and rivers.
I love the Maui Andie top for its simplicity. After three years of heavy use, I can confidently say that the Maui is extremely durable, and has withstood natural hot springs and even a polar plunge in spring waters in Wyoming. For this reason, the Maui Andie top wins our award for best plus size swim top.
Andie Swim Maui Bikini Top
After paddling down river several miles, the Maui stands up to swimming and punishing sun.
The straps, while not especially thick, are strong and are adjustable for chest support.
I wear a D cup in bras and my chest was secure in the Maui top. Folks with larger chests also praise the Maui’s bust support. The top itself is not especially low cut and slightly longline, which is helpful and provides extra coverage.
There are built in bra pads which I have long since taken out, but they were never particularly uncomfortable or distracting. I have a large back and broad shoulders, and the XXXL fits me without any pinching or sagging.
There is no listed UPF protection in the Andie items I’ve tested, but as an avid sunscreen wearer I don’t find it as a drawback as I apply it heavily anyway and advise those who spend time outside to do so as well.
Andie makes their tops and one pieces in different fabric textures, from ribbed, smooth, and in patterns. I have a green ribbed top, which feels buttery against my body. I often use the Maui as a bra top, keeping it on all day as I hike into an alpine lake or wear it under a sundress after a dip in the river near town.
My only gripe about the Maui extends to Andie as a brand, which is that I wish they embraced true size inclusivity and offered suits in sizes higher than an XXXL, and offered those sizes across all fabric textures and patterns. A few months ago, I eagerly awaited Andie’s summer drop only to be disappointed that a suit I had planned to purchase did not go past XL in the cute gingham pattern I wanted.
Plus-size swimmers and paddlers deserve all the cute patterns and textures too, and hopefully Andie learns soon that they have a huge growth opportunity if they were to expand their size offerings and reach more customers. I have found their swimwear to fit well and stay resilient while also allowing me to feel on trend, and those who wear sizes larger than an XXXL should be able to find this out for themselves as well.
Best Two Piece Bottom: Andie Swim THE High Waisted Cheeky Bottom
Type: Two piece bottoms
Price: $56
Materials: 90% nylon, 10% spandex
Size Range: XS-XXXL
UPF: Not listed
What we liked: versatility for pool and kayaking, keep their shape and supportive ability for years, soft material, no rolling or sagging
What we didn't like: only available up to XXXL, UPF rating not listed
My favorite part of Andie’s cheeky bottoms, like the Maui top (review below), lies in their simplicity. The design is minimalist and the fit is sleek, cutting a silhouette that makes me feel confident without compromising utility. These bottoms feel equally at home poolside as they do on my kayak and they are my go to swim bottoms.
Andie Swim The High Waisted Cheeky Bottom
The versatility of the High Waisted Cheeky Bottom from Andie is our favorite thing about them.
Andie’s The High Waisted Cheeky Bottom has kept its shape and supportive properties for the nearly two years that I’ve owned it. Like the Maui top that I frequently pair with them, the bottoms are made with soft fabric that is easy to forget about when I’m on the water — just the way I like it.
I chose the high waisted bottoms seeking a fit that made me feel secure and more comfortable, especially because I’m unused to wearing mid and low-waisted bottoms. The high waist design doesn’t roll or sag when I’ve swam laps in a pool or when I’ve fallen off my paddle board more times than I care to count.
The waist band is made of a narrow elastic, so those looking for a wider band may want to look at Andie’s other high waisted bottoms, which offer a significantly wider elastic at the waist. I haven’t found the elastic to cut into my stomach, though. The seams are comfortable, and I haven’t found there to be any chafing in the areas that I most frequently chafe.
Like the Maui top though, I hope to see Andie expand their size offerings to beyond XXXL and reach even more customers.
Best Swim Shorts and Board Shorts: Columbia Sandy River Shorts
Type: Board shorts/ swim shorts
Price: $45
Materials: 100% Nylon Perfecta Plus II
Size Range: 1X-3X
UPF: 30
What we liked: value for the price, versatility for hiking and water sports, no pinching or bunching, durability, dry quickly
What we didn't like: only available up to 3X, only UPF 30
I first found Columbia’s Sandy River Shorts several years ago while searching for a pair of shorts I could take hiking that would also work well for paddling and fishing. I generally struggle to find shorts that fit comfortably without pinching at the waist or bunching uncomfortably when I sit (see my best plus size outdoor clothing review for more on hiking shorts that do work). Columbia’s Sandy River Shorts have proven to fit these requirements and more, and they have lasted through years of use in a variety of settings.
Columbia Sandy River Shorts
The Columbia Sandy River Shorts are easy to swim in.
The Sandy River shorts are made of 100% Nylon Perfecta and have a simple but effective design, with a simple drawstring waist and two side pockets and a zippered pocket at the back. The shorts are part of Columbia’s Omni-Shade line and have UPF 30 sun protection. While I prefer items made with UPF 50, I haven’t found myself getting burned. However, I use sunscreen, which I recommend with any clothing item regardless of the UPF rating.
I love how small and lightweight these shorts are, and I bring them on summer backpacking trips where I want something durable, ripstop, and breathable enough that can be rolled up and stashed easily. They dry quickly, making them perfect for watersports and water activities. The Sandy River Shorts also frequently go on sale and generally sit around $45, making them an excellent choice that fits most budgets.
Best for Paddling: UV Skinz Long Sleeve Swimsuit
Type: Rashguard
Price: $95
Materials: 85% Polyester and 15% Elastane
Size Range: XS-4XL
UPF: 50+ UPF
What we liked: UV detecting zipper, high UPF rating, thumb loops, color options, cute and functional
What we didn't like: internal bra is not removable, sizing can be tricky for some folks
UV Skinz was started by founder Rhonda Sparks after losing her husband to skin cancer in 2001, and the brand seeks to make pieces for folks to recreate outdoors in high quality swimwear that provides excellent sun protection. The UV Skinz Long Sleeve Swimsuit feels like a hybrid of a rash guard and a suit, with a half-zip opening and an internal shelf bra that feels supportive for my medium/large sized chest.
UV Skinz Long Sleeve Swimsuit
The fit of the UV Skinz suit is comfortable while swimming and paddling.
My favorite feature in this suit is the UV Detecting Zipper, which changes color when exposed to UV light and shows when sun rays are at their most intense. This feature doesn’t adjust or modify the already high 50+ UPF protection that the suit provides, but it was helpful as a reminder to reapply sunscreen while we kayaked and sat along the lake’s edge. There are also thumb loops for coverage over the wrists and hands, and they felt comfortable while swimming and didn’t drag on my thumbs.
If I had larger breasts or needed a more specialized fit, the internal bra might not work for me, but I didn’t have any issues as it was. The internal bra is also not removable, which is something I would like to see as many folks don’t like to use them or can’t find a comfortable fit with a built-in bra. The thighs and back are full coverage, though they did fit at my bikini line in a higher cut than other swimwear I tested, though this is likely due to my longer torso, so pay attention to the torso length in your selected size.
I found the material to feel soft and compressive without any pain, and it is chlorine and saltwater resistant as well. I like the color options, which come with attractive color blocking along my curves for a cute and functional look. Some reviews on UV Skinz’s website mention bagging around the butt, though I didn’t find that to be the case with mine. I would recommend you pay close attention to the size chart and know your measurements when making your purchasing decision.
Overall, the UV Skinz long sleeve swimsuit is a great fit for a long day of paddling and swimming, and it feels durable enough for any of my future adventures on the water.
Other plus size swimwear we tested
alder Surfs Up High Rise Swim Bottoms
Type: Two piece bottoms
Price: $80
Materials: 78% recycled polyamide/22% elastane
Size Range:XS-6X
UPF: 50+
Unfortunately, alder has closed up shop as a brand, but you can still get their excellent Surfs Up High Rise Swim Bottoms at a discount in select sizes. alder as a brand was dedicated to making style and function more size inclusive. These cute bottoms are made of recycled material and even have pockets, nearly unheard of in swimwear. It's worth noting they show more cheek than other bottoms and have a high cut.
alder Surfs Up High Rise Swim Bottoms
Type: Two piece top
Price: $60
Materials: 92% recycled polyester/8% spandex
Size Range: XS-6X
UPF: 50
Unfortunately, alder has closed up shop as a brand, but you can still get their excellent Surfs Up High Rise Swim Bottoms. alder as a brand was dedicated to making style and function more size inclusive. This cute top is made of ECONYL regenerated nylon. The high coverage provides coverage for bigger chests and UPF 50+ sun protection in the sternum part of the body that is especially susceptible to burning. It doesn't come with inserts or a shelf bra, which is worth noting if you prefer that type of top.
Alder Surfs Up High Neck Bikini Top
Size and Fit Guide
Finding well-fitting plus-size swimwear can feel like solving a puzzle, but understanding how swimwear sizing works—and how it differs from regular clothing—makes all the difference. After testing dozens of suits across multiple brands and consulting with swimmers of various body types, we've learned that the right fit transforms not just how you look, but how confident and capable you feel in the water.
Understanding Plus-Size Swimwear Sizing
Swimwear sizes vs. clothing sizes
Swimwear sizing follows different rules than everyday clothing, and this becomes even more pronounced in plus sizes. Most swimwear brands size 1-2 sizes smaller than street clothes because the fabric needs to compress and support your body when wet. This means if you typically wear a 2X in tops, you might need a 3X or even 4X in swimwear.
However, this isn't universal. Athletic swimwear brands like Lands' End and Columbia often run closer to true clothing sizes, while fashion-forward brands like Andie tend to run smaller. Always check the brand's specific size chart rather than assuming your usual size will work.
The importance of measuring correctly
Swimwear fit depends on precise measurements, not the size on your clothing tags. You'll need three key measurements: bust (around the fullest part), waist (at your natural waistline), and hips (around the fullest part of your hips). Measure in underwear or nude, and don't pull the tape tight—it should lay flat against your skin without compressing.
For two-piece suits, you can often size tops and bottoms differently, which many plus size folks find important to get the right for their body. Don't feel like you need to order the same size for both pieces if your measurements suggest otherwise!
Fit Challenges and Solutions
Large bust support
If you've got a bigger bust, look for suits with underwire (if you prefer it), wide straps that don't dig into shoulders, and side panels that provide lift and separation. High neck or halter tops work well for some, but can strain the neck during active swimming.
The key is ensuring the band around your ribcage does most of the support work, not the straps. If you're constantly adjusting straps or feeling shoulder pain, the band is likely too loose. For active swimming, consider sports-bra style tops with compression rather than traditional bikini styling.
Tummy control and coverage
High-waisted bottoms and one-piece suits with strategic ruching (a sewing technique to create pleats along seams) can provide smoothing without feeling restrictive. However, avoid suits that are too tight in an attempt to "control" your midsection—this often creates bulging above and below the suit line and restricts breathing and movement.
Instead, look for suits with built-in shaping panels or compression zones that smooth without squeezing. Wrap-style tops and asymmetrical designs can also create flattering lines without relying on tight compression.
Thigh coverage and chafing prevention
Many plus-size swimmers deal with thigh chafing, especially during active swimming or long days in the water. Rash guards, boy-short style bottoms or swim shorts provide coverage and reduce skin-on-skin contact. Look for flat seams and avoid suits with thick elastic at the leg openings, which can dig in and cause chafing.
Anti-chafe creams that are water-resistant like BodyGlide can help, but the right fit prevents most chafing issues. Leg openings should lay flat against your skin without rolling up or cutting in.
Fit Testing at Home
Test with movement
Once your suit arrives, test it thoroughly before removing tags. Put it on and move through swimming motions—reach overhead, bend forward, sit down, and do jumping jacks. The suit should stay in place without riding up, gaping, or cutting into your skin.
Check that nothing shifts when you move, and pay attention to any areas that feel tight or restrict breathing. A well-fitted suit should feel secure but never uncomfortable.
Test in water
If possible, test how the suit behaves when wet by taking a shower while wearing it (yes, really!). Wet fabric behaves differently than dry, and you'll quickly discover if the suit becomes transparent, sags, or feels too loose when saturated.
Pay attention to how long it takes to dry and whether it retains water in certain areas, which can cause discomfort and extend drying time.
Common Fit Mistakes to Avoid
Ordering your regular clothing size
This is the #1 mistake in swimwear shopping. Always consult the brand's size chart and measure yourself. When in doubt between two sizes, consider the suit's intended use—size up for casual wear and relaxation, size down for active swimming where you need compression and support.
Ignoring fabric composition
Suits with higher spandex content (20%+) will have more stretch and compression, while suits with lower spandex content (10-15%) will have a more relaxed fit. Consider your activity level and support needs when choosing fabric blends.
Focusing only on size, not shape
A 3X in one brand's athletic cut may fit completely differently than a 3X in their fashion cut. Pay attention to style descriptions—words like "compression," "performance," and "athletic" indicate tighter, more supportive fits, while "relaxed," "flowy," and "coverage" suggest looser fits.
Not considering alterations
Unlike regular clothing, swimwear alterations are tricky and often not worth the cost. However, simple strap adjustments or taking in the side seams can sometimes save a suit that's close but not perfect. Consider this only for expensive suits and always use a professional familiar with swimwear construction.
Return Policy Guidance
Know before you buy
Plus-size swimwear shopping often requires ordering multiple sizes or styles to find the right fit. Before ordering, check:
Return window (some brands offer extended returns for swimwear)
Whether tags must remain attached
Return shipping costs
Exchange vs. refund policies
Hygiene considerations
Most brands require hygiene liners for trying on swimwear, and some won't accept returns if the liner has been removed. Keep the liner in place during all try-ons, and only remove it once you're certain you're keeping the suit.
As comfortable in lakes and rivers as it is in backyard hang outs, the Maui top is versatile and aesthetically pleasing.
The need for plus size swimwear
For me, the ability to move my body freely, without fear of taking up too much space or looking ridiculous, is most easily found in the water.
The water is where many of us are most comfortable, but for plus sized people finding swimwear and sun clothes that are not only size inclusive, but functional for athletic and natural water swimming, paddling, and other water sports can feel impossible.
Clothing is more than just function, especially for those who have been gatekept from accessing pieces that are functional and aesthetically pleasing. In the right swimsuit I am not only able to swim further and for longer, but I feel as strong as the suit I’m wearing. We all deserve this feeling.
Check out our interview with Jenny Bruso, founder of Unlikely Hikers and advocate for all bodies in the outdoors.
Types of active swimwear
With full arm coverage, the UV Skinz long sleeve swimsuit provides excellent sun protection.
Types (one piece, rashguard, two piece)
One Piece
Most of us have spent our childhoods in one-piece swimsuits, which can range from performance pieces made to streamline your body through the water in competitive swimming to ones made for poolside lounging. For the purpose of this article, I will be focusing on swimwear made for non-competitive purposes. While I swim in primarily open waters (lakes, rivers, non-pool settings) I do not compete in open water races and many swimmers who do so opt for swimwear that is made for heat retention and buoyancy.
If you are looking for a training suit (which are often knee-length) or a wetsuit made for open water competitive swimming, I recommend looking at open water swimmer Suzanna Cruickshank’s writeup of plus size wetsuits (brands are from the UK but most ship internationally) to find a wetsuit best suited for your body. Keep in mind that suits made for competitive open water swimming are different from those made for surfing, so do your research to make sure you’re choosing the correct piece.
For this guide though, I am focusing on one piece suits that are made to hold up to laps at the pool, paddles down the river, and frequent swims in the lake. A one-piece suit is a great starting point for those who want support and coverage, though it can be slightly heavier than two-piece suits if one plans to bring it backpacking. My preferred one-piece suit can handle getting snagged on an underwater branch, doesn't break down in a chlorine heavy pool, and is compressive and supportive enough for me to swim for hours without sagging.
Two Piece
Featuring an adjustable cinch, the Jasmine Top is perfect for swims in lakes.
For most of my life the idea that I would ever wear a two piece suit felt ridiculous, especially as a swimmer who never had a “cute” suit until adulthood. I soon discovered that there are several size-inclusive brands making two pieces that have fuller coverage and more support than a typical bikini, while not compromising on quality and durability.
When deciding whether to get a two or one-piece suit, water and weather conditions, along with your comfort level, are likely the biggest considerations you will face. Although I spent much of my life in a one piece, I now choose to wear two pieces for their versatility and the freedom of movement that comes from wearing less fabric in the water.
When backpacking, I often try to find opportunities to swim and prefer to bring a suit instead of swimming in my clothes. A two piece is often lighter in weight and I will usually end up wearing my swim top for the rest of the day to keep cool as I hike. I generally find them to dry faster than one pieces as well, and can throw them back in my pack the next morning without worrying about a soggy and heavy suit that may end up smelling mildewy. Look for two pieces with supportive, thicker straps and higher waist lines if you want more coverage and support.
Rash guards
Rash guards are an extra layer of protection that can be used in a variety of settings while out on the water. Rash guards are often overlooked pieces, but I appreciate the light protection, especially when swimming and paddling in lakes where I encounter trees, rocks, and other debris. Typically rash guards are thought of for surfing and can provide protection from abrasions and chafing caused by close contact with a rough and sandy surfboard and its wax. In my opinion, they shouldn’t be confined to surfing use due to their excellent protection.
Rash guards often take the form of a quarter zip, long, or short sleeved top, that can hit at the waist or shorter if the guard comes with adjustable cinches or other features. They’re generally made from ripstop and Ultraviolet Protection Factors (UPF) synthetic material that is meant to keep your arms and torso out of the sun and safer from scrapes caused by materials in the water like seaweed, trees, or rocks.
Unlike a wetsuit, rash guards are not made of thick enough material to give more comprehensive protection from abrasions, so don’t wear one expecting more than light to medium protection.
Rashies are also different from wetsuits in that they are not made to keep you significantly warmer in cold water, but they can and do often provide a light insulation in water that is slightly chilly but too warm for a wetsuit.
I wear a rash guard while paddling in Thousand Springs State Park in Idaho, where water temperatures stay a steady 60° all year, and find a rash guard to be a great addition to my paddling and kayaking closet. On hot days, I love to throw a rash guard on top of my swim top and pair it with my swim bottoms. When I get wet, the rashie keeps me cool for longer.
What to look for in active swimwear
Superfit Hero’s Rash Guard dries quickly, especially when laid out after use.
Materials
There is no single material that is used in swimsuits that is best, as the vast majority of suits are made with blended fabrics, which is why I advise focusing on UPF protection, chlorine resistance, rip-resistant features, and recycled material when choosing non-competitive swimwear.
Most swimsuits are made from synthetic materials such as polyester, elastane (spandex), and nylon (or a blend!).
Generally, spandex suits do not last as long in chlorinated water as polyester and nylon, so if you plan to swim in pools, look for chlorine-resistant spandex. From researching and looking at dozens of suits, it seems common to blend nylon and spandex to form a suit with solid compression, low drag, and water-wicking technology.
Sun protection
Having light coverage in mildly cold waters, like this 60 degree natural spring, is a great feature.
Of all the features of the various swim and water wear products on this list, UPF protection is, in my opinion, the most important feature to consider and makes the difference between a suit made for poolside sunbathing and one made for use in a variety of settings and sports.
UPF (or Ultraviolet Protection Factor) swimwear is material that offers protection from the sun’s UVB and UVA rays, and the UPF rating determines how much UV radiation you may be exposed to (in the areas covered by the suit/clothing to be specific).
Currently the highest UPF rating is 50+, which blocks 98% of the sun’s UV rays according to the Skin Cancer Foundation. The Foundation also states that a fabric must have a UPF of 30 to qualify for their Seal of Recommendation, while a 30-49 rating offers very good protection, and 50+ offers excellent protection. Finding UPF 50+ swimwear is not as difficult as it once was, and all of the items on this list offer a minimum of 30 UPF protection.
Fit
Even when sitting, the Andie Cheeky Bottoms don’t roll down.
The swimwear that I grew up wearing was made for speed and endurance and was very compressive and often difficult to get on and off. Swimwear Ifor competitive swimming is still compressive without compromising on comfort.
Look for items that make your body feel good. Many suits are made with comfortable, non-chafing seams and have wide waist and bust lines to prevent rolling and pinching.
A loose or even slightly roomy suit while dry will likely result in sagging while wet, so find a fit that is close to the body without feeling overly constrictive or tight. Swimwear should, when dry, fit snugly against the body without bunching or rolling. Check for any bagging around your rear or your chest, which are common areas and will result in a not very fun “wet diaper” look after getting out of the water.
For support around the chest, look for construction that is intentionally made to hold breasts without the fear of them falling out or getting pinched while moving and swimming. I favor halter and t-back swim tops for this reason, though I have found adjustable straps to work well too. Many suit tops also come with built-in wires and bra-sized fits, but I prefer to go wireless with my swim tops and don’t usually opt for those.
Almost every swim top I have ever tried has come with removable breast pads which inevitably bunch up and migrate throughout the top, so I always remove mine but this is really dependent upon your preference. Molded cups and wide straps also bring extra support.
One thing I love about swimwear is the versatility and ease of adjustability with fit. On my body, I am often a larger bottom size than I am in my top, which is a major reason I choose two piece swimwear which allows me to purchase different sizes and mix and match for a fit that is best for me.
No matter what, you deserve to wear swimwear that feels snug without constriction. If you ever find red marks or indentations in your skin after wearing a suit, that is a sign to size up! Pain is not a determining factor in a well made suit.
Durability
After paddling for hours, the Andie The High Waisted Bottoms still hold up to swimming and time in the sun.
Finding swimwear that is specifically marketed as rip-stop is rarer than with non-swimwear clothing, but in general look for swimwear from brands that are not creating pieces for solely pool-side lounging. If you plan to wear your suit in a setting with a lot of trees, rocks, or other debris, consider adding a rash guard to add a layer of protection for your suit and your body. The biggest factor in keeping your swimwear in good shape over the long term comes down to care, both before and after you hit the water.
How should active swimwear fit?
The straps on the Maui Bikini Top stay on even when swimming through mountain lakes.
When choosing active swimwear, your goal is to find a balance of compression and comfort while moving around.
Active swimwear should fit snugly against your body, but there should be no pain at the straps and other openings, nor should you feel constricted and unable to comfortably breathe or bend.
You want to ensure that your swimwear doesn’t drag when wet, so make sure to not wear a suit that is even slightly too big.
Shoulder straps should be flush against you, but should never dig into your shoulders.
Caring for your swimwear
I have, and often still am, guilty of not taking good care of my swimsuits. It is all too easy to hang it up to dry outside or in the bathroom and only pick it up once again to wear it the next time you go in the water. But to prevent swimwear from cracking, losing its shape, and losing its compression, taking proper care is vital.
Immediately after wearing, rinse your swimwear in cold water to remove sweat and natural body oils, along with sunscreen, chlorine, or saltwater that has stayed on the suit. I toss my suits in a delicates bag and wash them in cold water with a gentle detergent and always let them air dry. Due to the high elastic in a suit, never dry in the dryer and never bleach or iron your suit. If possible, lay items flat out to dry versus hanging to prevent further stretching.
FAQ
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In our experience, plus-size swimwear often runs 1–2 sizes smaller than regular clothing due to compression and support needs. If you wear a 2X in clothing, you might need a 3X or 4X in swimwear—but sizing varies by brand. Always measure your bust, waist, and hips, and use each brand’s size chart. If in doubt, order two sizes to try on. Many two-piece suits also allow you to mix sizes for top and bottom.
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Look for features like underwire, wide straps, compression fabric, and sports-bra-style construction. The most supportive suits have a snug band under the bust that provides lift—more so than the straps. Brands that offer bra-sized tops or athletic designs like Lands’ End or Superfit Hero are great options for D-cup and up. Lands' End notably offers the Tugless swimsuit we recommend in several styles so you have options depending on the support you need.
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Swimwear sizing is generally smaller than streetwear because the fabric is designed to compress and support when wet. A 2X in clothes may translate to a 3X or 4X in swimwear. Fit also varies dramatically by brand and even by style—so always check the brand’s chart and don’t rely on your usual clothing size.
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Choose a properly fitted suit made with flat seams and soft, high-nylon fabrics. Boy-short bottoms or swim shorts can help reduce inner thigh chafing. Anti-chafe products like BodyGlide or petroleum jelly can help during activity. If you’re chafing, it’s often a sign your suit is too tight or rubbing at key friction points.
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Choose suits labeled as “chlorine resistant” with fabric blends like:
80% nylon / 20% spandex (chlorine-treated)
85% polyester / 15% elastane
PBT blends (used in competitive swimwear)
Polyester blends and chlorine-resistant spandex last longer in pools than standard stretch fabrics. Always rinse after swimming and avoid machine drying to extend the suit’s lifespan.
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With regular use and proper care, a good suit should last 1–2 years, though we've had suits that have lasted 3+ years. Chlorine exposure shortens lifespan—expect 6–12 months for pool use. Replace your suit when it loses elasticity, becomes see-through when wet, or starts fraying. Higher-end brands typically last longer, but all suits degrade faster with frequent use.
How we researched and tested
As a former competitive swimmer, almost every outdoor adventure I go on centers around putting my body in water, and I can often be found swimming to islands and finding coves in lakes and rivers.
I spent hours researching the best plus size swimwear and of nearly two dozen options, tested the most promising models side-by-side.
I tested these swim pieces, some over the course of years, in mostly natural water sources under heavy sun. They were taken kayaking through the Snake River in Idaho and Wyoming, did laps in the community pool, and dove into deep and cold alpine lakes. Through these tests, I looked for gear that stayed close to my body and didn’t drag, didn’t pinch or feel constricting, and didn’t fray or crack after heavy and repeated use. I looked for suits that would take me, and hopefully you, further for longer and help us feel confident and capable.
Why you should trust us
I grew up swimming, was thrown in a competitive pool at 7 and spent the rest of my youth swimming competitively and playing water polo. As a camp counselor, I was a lifeguard and spent hours on pool decks.
As a former competitive swimmer, I know firsthand the importance of a suit that is well made and well fitted. A good suit and swim gear allows one to go further and stay in the water longer, and I hold that at the forefront as I tested the gear in this article.
My body is a fat body, and it is Brown. I own these two identities, and my existence in them is a journey longer than any trail I'll ever hike. I shouldn't have to deal with any special hardship when outdoor apparel.
Over the years I've bought and returned countless plus size activewear and outdoor gear that wasn’t designed for my body. I've also scoured internet forums for posts from other plus size outdoor enthusiasts to learn which outdoor brand may have outdoor gear designed for us and to find gear options that work.
You can read more about Gabi Reyes-Acosta on their author page.
