Owala FreeSip Sway Hiking Water Bottle Review: A Year of Daily Use Without Leaks
A versatile and durable water bottle made for hiking, camping, travel, and everywhere in between
September 23rd, 2026
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Our verdict
The Owala FreeSip Sway is our favorite insulated stainless steel water bottle that keeps liquids cold for hours without leaking. The FreeSip Sway sports a wide, easy to hold carrying handle and versatile options for drinking that make for a comfortable user experience.
The innovative lid, featuring two drinking options, is a favorite feature we haven't seen on other bottles. The handle, designed to prevent fingers pinching or getting tired of carrying water due to its ergonomic build and wide width, is another feature that sets it above other bottles.
We tested the FreeSip Sway over more than a year of daily use, on long road trips, and during camping and day hikes in high temperatures (into the upper 90s) and milder conditions. Through all our testing, we found the FreeSip Sway to be our favorite insulated bottle we’ve tested this year.
While not made for lightweight backpacking, we highly recommend it for travelers, commuters, and outdoor adventurers who want cold water in a leakproof bottle and don’t mind the extra weight of the stainless steel bottle.
Owala FreeSip Sway
The Owala FreeSip Sway is the best overall pick in our Best Hiking Water Bottles guide, and the Owala FreeSip Tumbler is the best overall in our Best Insulated Tumblers guide. Plus, it comes in a myriad of aesthetic colors to meet almost every preference.
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Owala FreeSip Sway specifications
Price: $55 for the 64 oz, $45 for the 40 oz size, $35 for the 30 oz, $27 for the 18 oz
Capacity: 18 oz, 30 oz, 40 oz, 64 oz
Empty weight: 12.3 oz, 16 oz, 20.8 oz, 32 oz
Collapsible: No
Filter: No
Insulated: Yes, double-wall insulation
Material: Stainless steel
Mouth width: Wide mouth with lid off, moderately sized drinking spout with sipping option
Lid/valve type: Push button opening with a locking lever
Leakproof: Yes
Fits cup holder: Yes (30 and 40 oz sizes)
Dishwasher safe: Lid only
BPA-free: Yes
Comparison table
| WATER BOTTLE | CAPACITIES | WEIGHT | MATERIAL | INSULATED | FITS CUP HOLDER | LEAKPROOF | COLLAPSIBLE | FILTER | MSRP |
|---|---|---|---|---|---|---|---|---|---|
| Owala FreeSip Sway | 18, 30, 40, 64 fl oz | Not listed | Stainless steel | ✅ | ✅ | ✅ | ❌ | ❌ | $27-55 |
| YETI Rambler Water Bottle | 12, 18, 26, 36, 46, 64 fl oz | 16.0-36.8 oz | Stainless steel | ✅ | ❌ | ✅ | ❌ | ❌ | $32-65 |
| Stanley IceFlow Flip Straw Tumbler | 14, 20, 30, 40 fl oz | 12.3-32.0 oz | 18/8 Recycled stainless steel | ✅ | ✅ | ✅ | ❌ | ❌ | $20-45 |
Best for
Car campers who don’t need the lightest water bottle
Day hikers who don’t mind a water bottle with a little bulk
Travelers and commuters looking for a portable travel water bottle
Anyone looking for an everyday water bottle
What we liked
The FreeSip Sway’s bucket handle is smooth and wide enough to carry comfortably in hand, even when the bottle is full and heavy with water.
The locking lid prevents accidental spills, a feature I hadn't seen in other insulated bottles I’ve tested.
The FreeSip’s smooth, ergonomic exterior is durable.
What could be better
Over time, cold-keeping ability seems to wane with the FreeSip, especially with ice that melts fairly quickly. On hot summer days, our 46 oz Yeti Rambler kept water colder for longer, though the water in the FreeSip remained cool and never got truly “warm.” We noticed that when tested against the Yeti Rambler, even when the bottle was new, it was outperformed by the Yeti in keeping liquids cold and retaining ice.
The FreeSip Sway is too heavy for overnight backpacking trips, especially in the 40- and 64-oz sizes. The heavy stainless steel construction makes for a bottle that is less than ideal for long day hikes or backpacking trips, where the added weight can be bothersome. Due to the double-wall insulation, the 40-oz size weighs 1.4 lbs when empty, making lighter options, such as titanium or single-wall plastic bottles that carry the same amount of water, a better pick.
Not made for hot or carbonated beverages.
How we tested
I tested the 40 oz Owala FreeSip Sway over the past year, using it as a daily water bottle while working from home, traveling by plane and car across states for personal and work trips, and camping, hiking, and paddling. The Owala FreeSip Sway didn’t leak when kept upside down or on its side in bags and cars, or when dropped, as long as the lockable lid was secured.
I filled the bottle primarily from sinks and fountains, and the wide mouth made refills quick and easy. We dropped the bottle several times on the floor of our house, on rocks and boulders during hikes, and on various trails from various heights. We also dropped the bottle onto its lid to test whether it would break, and it didn’t. During and after traveling, the bottle kept its shape, without visible scuffs. The only visible chip is small, a remnant from the bottle falling several feet onto a hardwood floor.
I tested the Owala FreeSip Sway’s portability in backpack water bottle pockets and in the cupholders of my old Honda CR-V, my partner’s newer Jeep, and the relatively shallow cupholders of our 90s truck.
I tested and own the 40 oz size in the “Summer Harvest” color, and the rich red has not faded and still looks new.
I've also tested this water bottle side by side with nearly 20 other water bottles for my Best Hiking Water Bottles guide. In each case, I judged water bottles based on ease of drinking, insulation capability, packability and weight, portability, durability, taste, and ease of filling and cleaning.
Performance in the field
Packability
While the Owala FreeSip Sway is great for daily commutes, the tall silhouette, especially in the 40 oz size, does not lend itself to packability. For nearly every other use, though, the FreeSip Sway is an excellent option that keeps water cold and is easy to transport for travel and daily commuting.
I took my 40 oz bottle on shorter day hikes in the Sawtooth National Forest and the Caribou-Targhee National Forest, where I hiked 6-8 miles on each trip. I ultimately still needed an additional bottle to filter water along the way, but as someone who loves having cold water on hikes, I appreciate having some at the beginning of the hike.
The tapered bases of the 40 oz and 30 oz fit easily in car cup holders and in the side pockets of hiking backpacks, though the 40 oz can feel top-heavy and fall out of a side pocket easily if not secured. I ended up storing my 40-oz bottle in the main compartment of my backpack to prevent it from sliding around.
During day-long flights, the 40 oz fit easily in my large Timbuktu travel backpack along with my 17-inch laptop and other small items.
Leakproofness
The Sway is designed and claims to be leakproof, and I have found the claims to be true in practice. I’ve fallen asleep with the Sway in my lap, dropped it dozens of times, and never detected a leak.
The locking mechanism is secure and designed to sit recessed into the lid of the bottle rather than sticking out, making it difficult to snag the locking lever in a backpack or car and accidentally unlock the lid. It takes an extra step to remember to lock the lid after use, but that short step prevents the lid from opening and leaking, which can be especially useful for commuters and travelers who toss the bottle into their backseat or backpack. Once unlatched, a single press opens the cap instantly for quick, one-handed drinking.
The bottle remains leakproof even when stored upside down, which I tested dozens of times while hiking. The bottle sat in the main compartment of my backpack and never so much as dripped. During long drives to trailheads and other car trips, the Sway often rolled onto its side for hours on the floor of my car's front seat, where it again proved itself leakproof.
Like most vacuum-insulated bottles with straws, the Owala is not designed for hot or carbonated beverages that can build up internal pressure. Some leakage around the seal, or even spraying from the spout, may occur when using those types of beverages.
Ease of filling and drinking
Owala designed a great all-around bottle in the FreeSip Sway, making it much easier to drink from than others I've tested. The dual-function, patented FreeSip Spout comes with an internal straw, giving you the option to drink with upward suction through the straw using the smaller opening at the bottle’s mouth, or to drink from the larger opening by tilting the bottle up and taking larger swigs.
Drinking is also easy, even when unlocking and sipping with one hand, which I practiced many times while walking the dog or holding my keys or a myriad of things in my other hand.
Removing the main lid reveals a wide-mouth opening that easily fits larger ice cubes.
I've been able to refill the bottle with water from kitchen sinks, bottle stations, or fountains easily, but the taller profile of the 40 oz size can be a tight squeeze in smaller sinks. In my own sink, I place the bottle in the dish drain opening to accommodate the extra inches, which isn’t perfect but still completely usable.
While the mouth of the bottle is wide and easy to fill, it is not compatible with screw-on water filters, such as the Sawyer Squeeze. I tend to hike with an additional bottle, my HydraPak Flux 1.5L with the integrated filter, and can squeeze filtered water from trailside sources into the Owala FreeSip Sway to keep water cold on trail, but would likely not do this on anything beyond day hikes because of the bottle’s weight.
Portability and carry
The Sway, while heavy (1.4 lb when empty in the 40 oz size), is easy to carry all day thanks to its ergonomically designed handle, which prevents finger pinching and is wide enough to carry without cutting into my hand. I carried the bottle on long days at festivals, on summer mornings at the farmers market, and on most of my paddling days, and the handle made it easy to carry without tiring my wrist or arms.
I tested this while attending farmers’ markets and other day-long trips, carrying the bottle in hand on and off for hours. I surprisingly found it to be more comfortable in hand than on my back in a backpack or sling. The slightly wide, bucket-style handle is flat and constructed with sturdy material (a type of BPA-free plastic; Owala does not list the exact type) that doesn’t cut into my hand. During a trip to Oregon’s Shakespeare Festival in early summer 2026, my friends who traveled with me enjoyed carrying what they called my “pail,” and we were all surprised by how comfortable it was to carry 40 oz of water.
As mentioned earlier in this review, the 30- and 40-oz versions of the Sway sport a tapered base and have a tall profile. The 40-oz size fits easily in the cupholders of my old Honda CR-V, my partner’s newer Jeep, and the relatively shallow cupholders of our 90s truck. The Sway sometimes falls out of shallow cupholders during sharp turns or sudden stops due to its height, but this hasn’t been a major leakage issue and is mostly a minor inconvenience. The 40 oz size stands at 11.66” while the 30 oz is 10.59” tall.
Durability
After a year or so of almost daily use, my Owala FreeSip Sway still looks sleek and fairly new, except for a chip on the lid from when I accidentally dropped it on a hardwood floor (and it still didn’t leak). The double-wall insulation has had zero internal damage from the frequent drops I subject the bottle to. I find the Sway to be overall very durable over the long term.
Under moderate or normal pressure, like being shoved in a full backpack or when I’ve accidentally sat on it or laid on it in the tent while car camping, the rigid body holds its shape without issue. I would not test compression beyond this and have tripped over it enough to find the bottle adequately solid.
The most vulnerable parts of the Sway lie in the lid design, namely the push-button opening, the locking mechanism, and the handle. I cannot rule out a cracked latch or a snapped top lid if dropped in just the right way onto hard concrete or rock, but in my experience, whether accidentally or for testing, I have yet to break the lid.
Taste and material performance
The FreeSip Sway’s interior is smooth stainless steel, and with regular cleaning I have never experienced a lingering smell. Even on travel days when I am only rinsing the bottle between refills, there has been no odor retention. I found that putting fresh fruit like lemons and oranges left a slight lingering taste for several hours, but it was easily cleaned with soap and water. When left sealed overnight, a light line may form at the top of the stagnant water, but it can easily be washed away with a quick cleaning.
The dual-function spout is made from BPA-free plastic, hasn’t chipped or retained taste, and the spring-loaded cap still opens easily. When the bottle is exposed to lots of dirt or sand, it can get stuck, but a quick blow of air clears the lid, and it can easily open and close again.
Features
Flip cap and straw lid
The Owala FreeSip Sway features a flip cap activated by a spring-loaded push button, making it easy to use with one hand. The internal straw can be removed for cleaning and connects to the smaller-sized drinking spout, allowing for drinking while upright or swigging through the wider spout.
The body of the FreeSip Sway is not dishwasher-friendly, but the lid is, and can be placed on a top shelf with the straw removed. I prefer to wash by hand, including soaking it in hot, soapy water (and sometimes a dash of white vinegar) and using a bottle brush to reach small crevices. You could also soak it in a bottle cleaning tablet.
Silicone / Tritan / stainless steel construction
The stainless steel construction is solid and easy to clean, and the bottle is lead-free.
Wide-mouth opening
The FreeSip Sway’s opening, when the lid is removed, is wide and easy to fill. The wide mouth also makes cleaning simple, with every washcloth and scrub brush I use fitting in without issue.
Leakproof sealing system
The leakproof sealing system is truly watertight thanks to the internal silicone gasket and the locking lever.
Brand and product sustainability, corporate ethics, and warranty
Owala does not make products from recycled materials, but all plastic materials used in the construction of the FreeSip Sway are BPA- and phthalate-free. The sturdy construction also lends to sustainability, since you likely won’t need to replace the bottle anytime soon.
All products have a limited lifetime warranty.
Should you buy the Owala FreeSip Sway hiking water bottle?
Buy if
You want a bottle with versatile options for swigging or sipping
You need a bottle that is confidently leakproof
You are seeking an all-around bottle for travel, day hiking, car camping, paddling, and everyday use
You accidentally drop your bottle frequently and need something that can withstand frequent falls
You want a bottle available in lots of colors
Skip if
You want a compact or collapsible bottle
You’re looking for a bottle light enough for backpacking or longer hikes
You need a filter-compatible bottle
You want a bottle that can take hot beverages or carbonated beverages
Where to buy the Owala FreeSip Sway hiking water bottle
The Owala FreeSip Sway hiking water bottle is popular, so you have plenty of retailer options. Here are some of the pros of each retailer.
Amazon
Pros: Free 2-day shipping with Amazon Prime membership (can be same-day delivery in major metropolitan cities)
Dick's Sporting Goods
This major sporting goods retailer is starting to sell more specialized outdoor gear. You can get free store pick up and some locations have same day delivery. It also offers free shipping over $49.
Advice on where to buy
In general for gear, we recommend purchasing from a place with easy or free returns.
Similar water bottles
Owala FreeSip Sway vs. Yeti Rambler
Price: $32-65
Capacities: 12, 18, 26, 36, 46, 64 fl oz
Empty weight: 16.0-36.8 oz
Collapsible: No
Filter: No
Insulated: Yes
Material: Stainless steel
Leakproof: Yes
Fits cup holder: No
I have owned a Yeti Rambler water bottle in the 26 oz and 46 oz sizes for over a year now. I have been impressed with the sturdy construction and find the bottles leakproof and able to withstand drops without leaking or cracking. This water bottle won best insulated in our Best Hiking Water Bottles guide, best insulated travel mug with handle in our Best Insulated Tumblers guide, and best for air travel in our Best Travel Water Bottles guide.
Like the Sway, the Rambler bottles show little visible wear over time. I find that the Rambler keeps ice intact slightly longer than the FreeSip Sway, but only by an hour or two. Both bottles have large handles, but I prefer the Sway’s handle, which can be folded up or down. In contrast, the Rambler's fixed handle adds an extra inch or so to its height. The Yeti’s handle is also not as durable, showing visible scuffs and scratches, while the Sway’s handle shows no visible imperfections.
The Sway is also better for traveling and commuting due to its tapered base, which fits easily into the cupholders of most cars, while the Rambler’s wider silhouette doesn’t fit, even in the 26 oz size.
The Rambler is a more straightforward bottle, with a simple screw-on cap, a comfortably sized drinking spout, and none of the additional features of the Sway, such as the locking lid. The Rambler doesn't have a straw or a locking lid, so it can handle hot beverages as well as cold drinks (note that some Rambler lids have a maximum temperature, and others are not recommended for hot beverages).
Those looking for maximum durability and thermal efficiency may want a Rambler, but for overall traveling, day hiking, and working, the Sway is my first choice.
Yeti Rambler
Owala FreeSip Sway vs. Stanley IceFlow Flip Straw Tumbler
Price: $20-45
Capacities: 14, 20, 30, 40 fl oz
Empty weight: 12.3-32.0 oz
Collapsible: No
Filter: No
Insulated: Yes
Material: 18/8 Recycled stainless steel
Leakproof: Yes
Fits cup holder: Yes
I’ve also owned a Stanley IceFlow Flip Straw Tumbler for a year and have used the 30 oz size frequently, usually when the Owala FreeSip Sway is soaking in water or not clean. As my second-most-used bottle for daily use and travel, I find the Stanley comparable to the FreeSip in cold retention. This water bottle won best leakproof insulated tumbler for travel in our Best Insulated Tumblers guide.
The FreeSip offers the versatility of a 2-in-1 drinking spout for sipping and chugging, while the Stanley focuses solely on drinking through its built-in flip-up straw. The tapered base of the Stanley fits the cupholders of an older Honda CRV, my partner's Jeep, and my newer car, and performs well at keeping them leakproof. The rotating top handle of the Stanley IceFlow is also wide, but I find its shape less smooth and comfortable to carry than the FreeSip Sway.
Stanley IceFlow Flip Straw Tumbler
Why you should trust us / About the author
I have been writing and testing gear for Treeline Review for over 4 years and am a frequent camper, backpacker, paddler, and traveler who knows the value of a water bottle that works in a variety of settings without issues.
I have a background in youth leadership programming and outdoor education programming and have also seen firsthand countless bottles break, leak, or fall short in some way. Finding drinkware durable enough to withstand my life both on and off the trail that doesn’t need to be replaced or gather dust in a cupboard is a goal I strive to meet, and in a world where water bottle trends change and people wait in lines for the chance to be the newest “it” bottle, I deeply value and respect finding bottles that are cute and long lasting enough to not need a replacement. Water fuels our adventures, and I believe it should be stored in gear that works for our lives.
You can find more of my work on my Treeline Review author page.
