--- source_url: "https://www.outsideonline.com/outdoor-gear/run/best-sports-bras/" title: "Best Sports Bras (2026): Tested and Reviewed" mirrored_at: 2026-08-12T03:03:50.791Z host: www.outsideonline.com cited_in_42a: true mirror_canonical: "https://index.42a.ai/www.outsideonline.com/outdoor-gear/run/best-sports-bras/index" --- > **Original source:** https://www.outsideonline.com/outdoor-gear/run/best-sports-bras/ Updated June 10, 2026 03:46PM #### Table of Contents [•Comparison Charts](#1)[•The Reviews](#2)[•How to Choose a Sports Bra](#3)[•How We Tested Sports Bras in the Field](#4)[•How We Test Sports Bras in the Outside Lab](#5)[•Meet Our Lead Tester](#6) _**April 2026 Update:** We spent hundreds of hours testing 29 new sports bras this season and comparing them to the 52 bras we’ve already tested. We chose the [Title Nine Tech Athena 2.0 ($65)](https://www.pntra.com/t/8-12992-205491-344914?url=https%3A%2F%2Fwww.titlenine.com%2Fp%2Fsports-bra-bigger-bust-tech-athena%2F320705.html) as the best sports bra for large chests. Testers said it was one of the most comfortable, with easy-to-adjust straps, a “dream” fit, and ample support. Looking for an affordable sports bra that still checks all the boxes? Try the_ [_Nike Swoosh Medium Support_](https://rei.pxf.io/c/2850304/1448521/17195?u=https%3A%2F%2Fwww.rei.com%2Fproduct%2F209712%2Fbrooks-crossback-20-sports-bra&subId3=outdoor-gear%2Frun%2Fbest-sports-bras_1oBlVNI6eIUMA3OAPboeeiZ)_._ Finding the best sports bra can be tricky business. The right ones offer the support you need for the activities you love while being comfortable and breathable. Bonus points to sports bras that spark excitement—the kind that build confidence, whether worn solo or layered under a [shirt](https://www.outsideonline.com/outdoor-gear/clothing-apparel/best-running-shirts-for-women/). ## Sports Bras Comparison Charts Product Name Price Sizes Best For / Impact Key Feature [**Nike Swoosh Medium Support**](https://www.jdoqocy.com/click-8951223-15734707?url=https%3A%2F%2Fwww.nike.com%2Ft%2Fswoosh-medium-support-womens-padded-sports-bra-b9qXentD%2FDX6821-100&sid=outdoorgearrunbestsportsbras_1oNpegUslxVzQqoPeFV2MIA) $42 XXS–XXL Medium Support / All-around Fixed cups (sewn-in) [**Title Nine Tech Athena 2.0**](https://www.pntra.com/t/8-12992-205491-344914?url=https%3A%2F%2Fwww.titlenine.com%2Fp%2Fsports-bra-bigger-bust-tech-athena%2F320705.html&sid=outdoor-gear%2Frun%2Fbest-sports-bras_1oisNimbzOlMzz3qNqo6oMb) $65 32-40, C-DDD High Support / Large Chests Adjustable Velcro straps [**Patagonia Live Simply Bra**](https://rei.pxf.io/c/2850304/1448521/17195?u=https%3A%2F%2Fwww.rei.com%2Fproduct%2F242427%2Fpatagonia-live-simply-bra&subId3=outdoor-gear%2Frun%2Fbest-sports-bras_1oJF2Ie2po6BJ3l6Op6bZYM) $59 XXS–XL Low Impact / Hot Weather 100% polyester (no Spandex) [**Title Nine AC Sports Bra**](https://www.titlenine.com/p/ac-bra-wireless-womens-sports-bra/310707.html?color=ORO&quantity=1) $99 32-40, B-F High Support / Breathability No underwire; feminine shape [**Rabbit Hydration Trail Bra**](https://www.avantlink.com/click.php?tt=cl&mi=35001&pw=209007&url=https%3A%2F%2Fwww.runinrabbit.com%2Fproducts%2Fhydration-trail-bra-womens&website_id=209007&ctc=outdoor-gear%2Frun%2Fbest-sports-bras_1o3gMY7EViIgJiJbiP3E7ZM) $70 XS-XL Running / High Impact Includes 250mL soft flask [**Athleta Interval**](https://athleta.gap.com/browse/product.do?pid=413272022&vid=95#pdp-page-content) $49 XS-3X, A-DD High Impact Cut-out back design [**Title Nine Three Reasons**](https://www.pjatr.com/t/8-12992-205491-344914?url=https%3A%2F%2Fwww.titlenine.com%2Fp%2Fhigh-impact-sports-bra-3-reasons%2F100569.html&sid=outdoor-gear%2Frun%2Fbest-sports-bras_1oqsYOrIrlZA2ZZglq6OMJO) $65 32-40, C-DD High Impact / All-day Front strap adjustments [**Under Armour UA Infinity 2.0 Low**](https://www.awin1.com/cread.php?awinmid=15431&awinaffid=1152355&campaign=&clickref=outdoor-gear%2Frun%2Fbest-spor_1oIeOq7IZeA3MpMoNNl6N2U&clickref2=&clickref3=&clickref4=&clickref5=&clickref6=&ued=https%3A%2F%2Fwww.underarmour.com%2Fen-us%2Fp%2Fua_infinity_2.0_low_womens_sports_bra%2F1384126.html&platform=pl) $35 XS-XL, A-DDD Low Impact / Mat Work Injection-molded padding [**Nike Indy Light Support**](https://www.jdoqocy.com/click-8951223-15734707?url=https%3A%2F%2Fwww.nike.com%2Ft%2Findy-light-support-womens-padded-adjustable-sports-bra-1OKDuZnP%2FFD1062-502&sid=outdoorgearrunbestsportsbras_1ogUF2gmxliQmrlPPYPpzVb) $40 XS-XXL Low Impact / Yoga Thin, adjustable straps [**Janji Pace Sports Bra**](https://rei.pxf.io/c/2850304/1448521/17195?u=https%3A%2F%2Fwww.rei.com%2Fproduct%2F187128%2Fjanji-pace-sports-bra&subId3=outdoor-gear%2Frun%2Fbest-sports-bras_1oF736lOPzbsJllU6e2mEVP) $58 XXS–XXXL High Impact / C-D Cups Weave cross-back design [**Left on Friday Flex Tank**](https://go.skimresources.com/?id=156240X1622567&url=https%3A%2F%2Fleftonfriday.com%2Fproducts%2Fsuper-flex-tank-cold-brew&xcust=outdoor-gear%2Frun%2Fbest-spor_1oB3N6r7zzVUEmxJM26Iie3) $70 XS–XL Low Impact / Swimming Shelf bra; buttery fabric [**Pruzan Hourglass Marathon Bra**](https://backcountry.tnu8.net/c/2850304/358742/5311?u=https%3A%2F%2Fwww.backcountry.com%2Fb%2Fpruzan-hourglass-marathon-bra-womens&subId3=outdoor-gear%2Frun%2Fbest-sports-bras_1oIPMQirpzs7MFUNezUqVpZ) $85 XS–XL Med-High Impact / Packs Flat seams for hydration vests [**Rabbit Pocket Bra**](https://www.avantlink.com/click.php?tt=cl&mi=35001&pw=209007&url=https%3A%2F%2Fwww.runinrabbit.com%2Fcollections%2Fpocket-bras%2Fproducts%2Fstrappy-pocket-bra-3&website_id=209007&ctc=outdoor-gear%2Frun%2Fbest-sports-bras_1o2NgEm72VIpiqPEI3b7VoI) $55-$60 XS–XXL Med-High Impact Upper-back phone pocket [**Tracksmith Run Bra**](https://go.skimresources.com/?id=156240X1622567&url=https%3A%2F%2Fwww.tracksmith.com%2Fproducts%2Fw-run-bra&xcust=outdoor-gear%2Frun%2Fbest-spor_1olIFMz7I6i6rJrMY3UxUQM) $70 XS–XL High Impact (up to B+) Italian nylon/elastane blend [**Brooks Chaser Padded Bra**](https://rei.pxf.io/c/2850304/1448521/17195?u=https%3A%2F%2Fwww.rei.com%2Fproduct%2FC01712%2Fbrooks-chaser-padded-bra&subId3=outdoor-gear%2Frun%2Fbest-sports-bras_1o2q6rIMMbie2FlsmrBIYgF) $65 XS–XXL Running / Yoga Sewn-in padding [**Nike Swift Bra**](https://www.tkqlhce.com/click-8951223-15734707?url=https%3A%2F%2Fwww.nike.com%2Ft%2Fswift-womens-high-support-lightly-lined-sports-bra-dyvwqtK3%2FHM5220-503&sid=outdoorgearrunbestsportsbras_1oeIVrMsxUVsJBrOxVPOAq7) $75 XS–XXL High Impact / Running Stitch-free armholes ![chart showing lab data on sports bras measuring breathability, air permeability, and dry time](https://cdn.outsideonline.com/wp-content/uploads/2026/04/Best-Sports-Bras-Data.png?width=3840&auto=webp&quality=75&fit=cover) (Illustration: Outside Lab) ## **Best Value** ![sports bras 2025 Nike Swoosh Medium Support](https://cdn.outsideonline.com/wp-content/uploads/2024/09/Nike-Swoosh-Medium-Support_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Nike) ## **Nike Swoosh Medium Support** **Sizes:** XXS–XXL **Lab Dry Time:** 4 (5=best; 1=worst) **Lab Air Permeability:** 2 **Lab Breathability:** 2 **Pros and Cons** \+ Fixed cups mean no pads to lose \+ Durable, long-lasting comfort – Pads, if you’re not a fan of them One tester has been wearing an earlier version of this sports bra for close to 20 years. “It’s been all over the world while keeping me comfortable [running](https://run.outsideonline.com/featured), [cycling](https://www.outsideonline.com/outdoor-gear/bikes-and-biking/), [hiking](https://www.backpacker.com/featured), [Nordic skiing](https://www.outsideonline.com/outdoor-gear/snow-sports-gear/best-cross-country-ski-gear/), etc.,” she says. The simple, pull-on style bra wicks sweat and remains comfortable for hours. The newest version of this do-anything, durable bra comes with light padding built in (no slipping, no losing the padding in the wash), and is made with sustainable, recycled polyester materials. Its $42 price point makes it among the least expensive sports bras out there, and while it’s classified as “medium support,” it can function as high support across a range of activities for smaller chest sizes. It also lasts for-e-ver. ## **Best for Large Chests** ![Title9 Tech Athena 2.0, tested and named one of Outside's best sports bras in 2026](https://cdn.outsideonline.com/wp-content/uploads/2025/08/Title9-Tech-Athena-2.0-Sports-Bra_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Title Nine) ## **Title Nine Tech Athena 2.0** **Sizes:** 32-40, C-DDD **Lab Dry Time:** 1 (5=best; 1=worst) **Lab Air Permeability:** 3 **Lab Breathability:** 3 **Pros and Cons** \+ Comes in multiple sizes \+ Adjustable shoulder straps and back hook-and-loop closure – Can be hard to get on for those with tight shoulders The easy-to-adjust Velcro straps of this bra, 2-inch chest band, and hook-and-loop back closure fit a range of testers securely and provided ample support. “This fit like a dream,” said one C-cup runner. We found this sports bra remarkably comfortable, with great wicking properties and long-wearing comfort. Hook-and-eye closure at midback, combined with the Tech Athena material that’s more structured than stretchy, can make this bra hard to get on for those with tight shoulders. But once it’s on, it’s super secure—making it one of the best sports bras for large busts that need both stability and comfort. ## **Best for Hot Weather** ![patagonia live simply bra, the best sports bra for hot weather](https://cdn.outsideonline.com/wp-content/uploads/2024/09/patagonia-live-simply.png?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy REI) ## **Patagonia Live Simply Bra** **Sizes:** XXS–XL **Lab Dry Time:** 5 (5=best; 1=worst) **Lab Air Permeability:** 3 **Lab Breathability:** 2 **Pros and Cons** \+ Minimal and comfortable \+ Dries extremely quickly – Can fit a little loose under the arms We’ve worn this bra hiking in 106-degree heat, sweaty weight-lifting sessions, running in all sorts of weather, and jumping in and out of lakes. This great sports bra remained comfortable throughout all of those athletic activities and even while working at a desk for hours. Its bonded seam construction lies flat and smooth with zero irritation, and the extremely lightweight, soft, 100 percent polyester tricot fabric dries ridiculously quickly (the fastest-drying bra we measured in the lab). We appreciated that, along with the anti-microbial treatment (HeiQ Mint) that combated odors when we kept the bra on after workouts. Because it doesn’t contain Spandex, the comfortable sports bra isn’t as supportive as some others, but it also doesn’t stretch out as much. It’s best for low-impact, or any activity for A to C cups. ![Title Nine AC Sports Bra black running sports bra](https://cdn.outsideonline.com/wp-content/uploads/2026/04/Title-Nine-AC_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Title Nine) ## **Title Nine AC Sports Bra** **Sizes:** 32-40, B-F **Lab Dry Time:** 2 (5=best; 1=worst) **Lab Air Permeability:** 5 **Lab Breathability:** 4.5 **Pros and Cons** \+ Ventilates well \+ Can be worn as everyday bra – Mesh panels could be softer – Pricey Our C-cup-and-up testers appreciated how this bra both supported them and breathed remarkably well (the most air-permeable in the test according to the lab). The sports bra supports without the assistance of underwire, and without creating a uni-boob. The soft, curved band lies comfortably against the skin and transitions to meshy paneling that separates the breasts. Two padded triangle inserts enhance coverage, and adjustable shoulder straps help dial in the fit. Testers noted that the bra gave them a “feminine shape,” which can be hard to come by in a sports bra. “This is a bra you can wear for an endurance workout or intense gym session,” said a tester. “You can even wear it under work clothes for a midday workout without anyone suspecting you’re wearing a sports bra.” Testers did note that the mesh can feel scratchy, especially during prolonged wear, but they liked how well the bra breathes and the combination of minimalist feel with maximal support. ![Rabbit Hydration Trail Bra running sports bra](https://cdn.outsideonline.com/wp-content/uploads/2026/04/Rabbit-Hydration_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Rabbit) ## **Rabbit Hydration Trail Bra** **Sizes:** XS-XL **Lab Dry Time:** 4 (5=best; 1=worst) **Lab Air Permeability:** 4 **Lab Breathability:** 4 **Pros and Cons** \+ Carries liquids \+ Lined with odor-fighting material – Runs small Even if this sports bra didn’t carry anything, we’d love it for its compressive support, comfort, wicking ability, and odor-resistant lining. But we love it even more for the ingenious, convenient way it comfortably holds the included 250mL soft flask. In place of a phone sleeve between your shoulder blades, this racerback features a dedicated hydration pocket—perfect for short summer runs when you need fluids but want to skip the [running vest](https://www.outsideonline.com/outdoor-gear/run/best-hydration-vests/) or handheld bottle. We even stashed a frozen soft flask inside, providing a cooling effect against the skin and ice-cold water mid-run. Beyond its hydration utility, we also loved the comfort of this bra’s slightly padded straps and its excellent temperature regulation. In the lab, it had the highest combined score, factoring in breathability, air permeability, and dry time. “I’ve run, mountain biked, hiked, road biked, and walked in this bra in temps ranging from 40s to 80s, and it has excelled at keeping me comfortable in all conditions,” said a tester. ## **Best for High Impact** ![Athleta Interval, tested and named one of Outside's best sports bras in 2026](https://cdn.outsideonline.com/wp-content/uploads/2025/08/Athleta-Interval_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Athleta) ## **Athleta Interval** **Sizes:** XS-3X, A-C, D-DD **Lab Dry Time:** 1 (5=best; 1=worst) **Lab Air Permeability:** 1 **Lab Breathability:** 4 **Pros and Cons** \+ Multiple size options \+ Zero chafing – Can be difficult to get on and off The recycled polyester/elastane blend of this sports bra is smooth and luxurious against the skin, breathes well, and wicks moisture away efficiently. The cut-out design on the back improves airflow and adds style. We found this design to provide a balanced level of support and compression, making it highly effective for high-impact activities of all kinds. One tester commented, “I absolutely hate feeling like my boobs are bouncing around when I run, but this one delivers.”  The Interval Bra comes in many size combinations, which allowed us to find just the right fit. ![Title Nine Three Reasons running sports bra](https://cdn.outsideonline.com/wp-content/uploads/2026/04/Title-Nine-Reason-3_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Title Nine) ## **Title Nine Three Reasons** **Sizes:** 32-40, C-DD **Lab Dry Time:** 2 (5=best; 1=worst) **Lab Air Permeability:** 3 **Lab Breathability:** 2 **Pros and Cons** \+ Easy to put on \+ Simple to adjust, even while on – Hook-and-loop closure uncomfortable during mat work Like the Title Nine Tech Athena 2.0 bra, the Three Reasons Bra offers comfortable, wire-free support for larger cup sizes. The standout difference? The strap adjustments are placed on the front for easier access. Testers raved about the effortless fit and adjustability, noting that the bra stayed perfectly in place regardless of activity. “This bra is supportive enough for long runs, but comfortable enough for long rides,” said a tester. “It breathes well enough for sweaty, cold Nordic skis, and I also like it for hot and sweaty indoor trainer rides in the basement.” The nylon-blend fabric earned high marks for its silky, moisture-wicking feel, with a liner that is gentle even against sensitive skin. While the exterior provides solid support, the shoulder straps are surprisingly soft, with a texture one tester described as “almost fuzzy.” “This was my favorite bra out of all I tested,” said one tester. “It’s one that will work for any workout, from sporting it with shorts while SUPing, to an all-day hike, gym workouts, a HIIT class, or a morning run. Grab it and go: it’s prepared for whatever athletic fun you choose.” ## Best for Low Impact ![Under Armour UA Infinity 2.0 Low](https://cdn.outsideonline.com/wp-content/uploads/2025/05/Under-Armour-UA-Infinity-2.0-Low_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Under Armour) ## Under Armour UA Infinity 2.0 Low **Sizes:** XS–XL, Cups A–C and D–DDD **Lab Dry Time:** 3 (5=best; 1=worst) **Lab Air Permeability:** 5 **Lab Breathability:** 3 **Pros and Cons** \+ Built-in padding doesn’t come loose \+ Soft, comfortable, breathable – Can be hard to find a perfect fit This lightly padded sports bra is offered at a steal of a price. We loved how there aren’t any irritating seams and that the injection-molded padding’s strategic patterning gave the bra a lightweight, breathable feel. We found the bra dried quickly even after working up a big sweat, keeping us from feeling gross underneath our clothes when running errands on the way home from a workout. The pullover design and lack of a clasp on the backside makes this a great choice for workouts that include mat work, like belly-up core work, Pilates, and yoga moves. And the mesh panel on the back “adds breathability without any distractions,” said a tester. Not only does the built-in padding eliminate the problems of losing a pad in the washing machine or having to uncrumple removable pads every time we put on the bra (truly, the worst), but we found the shape flattering and not excessive. Note that some testers found that the material buckled on the sides—although with so many size options, they could likely find an ideal fit with a different size/cup combination. ![Nike Indy Light Support, tested and named one of Outside's best sports bras in 2026](https://cdn.outsideonline.com/wp-content/uploads/2025/08/Nike-Indy-Light-Support_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Nike) ## Nike Indy Light Support **Sizes:** XS-XXL **Lab Dry Time:** 2 (5=best; 1=worst) **Lab Air Permeability:** 1 **Lab Breathability:** 1 **Pros and Cons** \+ Adjustable straps \+ Looks good worn on its own – Thin straps can be uncomfortable under hydration vest/pack Thin, adjustable straps allow a custom fit of this seemingly simple sports bra. “I just loved the fit, the feel, the material, the coverage!” raved a tester. Nike DRI-Fit material wicks sweat and dries quickly (although bra dries more slowly with removable pads in place). This light-support bra may be meant for low-impact activities, but we found it secured our chests well even for running and other high-impact activities. ## **Best for Wearing on Its Own** ![Janji Pace Sports Bra](https://cdn.outsideonline.com/wp-content/uploads/2025/05/Janji-Pace-Bra_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Janji) ## **Janji Pace Sports Bra** **Sizes:** XXS–XXXL **Lab Dry Time:** 2 (5=best; 1=worst) **Lab Air Permeability:** 2 **Lab Breathability:** 1 **Pros and Cons** \+ Best range of sizes among pull-over bras \+ Unique, flattering and supportive straps – Removable pads come out in wash We fell in love with this sports bra’s design detail—a flattering neckline with double straps, positioned narrower than most, that weave between each other when they cross mid back. The Pace sports bra proved supportive enough even for C- to D-cup testers doing high-impact activities like running and jumping. “Nice encapsulation and I love the cross back _with_ support!” said one. “You don’t usually get ‘cute’ with ‘supportive.’” We wore this skate skiing, running, cycling, and even at swim lessons, when a tester couldn’t find her bikini. This bra proved comfortable and up to the task of supporting all activities. ![Left on Friday Flex Tank running sports bra](https://cdn.outsideonline.com/wp-content/uploads/2026/04/Left-on-Friday_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Left on Friday) ## **Left on Friday Flex Tank** **Sizes:** XS–XL **Lab Dry Time:** 5 (5=best; 1=worst) **Lab Air Permeability:** 1 **Lab Breathability:** 3 **Pros and Cons** \+ Luxurious material \+ Great-looking on its own – Could be more breathable – Gaps a little at the low back Swimwear veteran Left on Friday enters the sports bra arena with this cropped top featuring a built-in shelf bra. Crafted from the brand’s buttery-soft blend of nylon and Lycra, this top feels fantastic against the skin. Its aesthetic appeal makes it a go-to for yoga, Pilates, hiking, and more. “I will SUP in this for sure and meditate on the dock in the sun,” said a tester. “It’s so cute that I’ll wear it both on its own to hike and layered under a SPF button-down. I can imagine being able to unbutton or remove the shirt altogether and still look clothed. I’ll also pack it for adventure travel because it’s so versatile and packable with the promise of quick dry.” The lab gave the bra the highest score for drying time. Another tester highlighted the premium construction. “This fabric is incredibly smooth and silky. This feels totally high end and sophisticated. It feels snugly compressive, but not tight.” Note, this bra is best for A-B cups, and maybe C-cups during low-impact activities. ## **Best for Wearing with a Pack** ![Pruzan Hourglass Marathon Bra running sports bra](https://cdn.outsideonline.com/wp-content/uploads/2026/04/Pruzan_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Pruzan) ## **Pruzan Hourglass Marathon Br**a **Sizes:** XS–XL **Lab Dry Time:** 1 (5=best; 1=worst) **Lab Air Permeability:** 5 **Lab Breathability:** 3 **Pros and Cons** \+ Breathable mesh liner \+ Crop cut looks good when worn on its own – Outline of removable pads shows through The Pruzan Hourglass Marathon Bra impressed us with its thoughtful construction, particularly the thick shoulder straps and flat seams that sit flush and chafe-free under a hydration vest. The seemingly simple pullover racerback combines a compressive nylon/elastane outer shell with a strong but soft elastic rib band to provide reliable support for medium- to high-impact activities. The interior is lined with a breathable mesh that wicks moisture efficiently, while a generous keyhole cutout maximizes airflow across the back. “This bra is up to the task of supporting your chest on longer runs without one hint of chafing and without feeling restrictive,” said a tester. “This bra has impressive support and looks good,” said another. ## **Best with Phone Pocket** ![Rabbit pocket bra](https://cdn.outsideonline.com/wp-content/uploads/2026/04/rabbit_POCKET_BRA_BLACK_6_2048x.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Rabbit) ## **Rabbit Pocket Bra** **Sizes:** XS–XXL **Lab Dry Time:** 3 (5=best; 1=worst) **Lab Air Permeability:** 1 **Lab Breathability:** 5 **Pros and Cons** \+ Flattering silhouette \+ Comfortable padded straps \+ Convenient phone pocket – Removable pads get jumbled in the wash This redesigned all-arounder is perhaps the most versatile sports bra in the test. It manages the rare triple threat: it carries a phone securely in the upper-back pocket, looks stylish enough to wear on its own, and remains perfectly comfortable under a pack or hydration vest. Plus, it measured the most breathable of the group in the lab. We found the updated fit supportive without being restrictive. The recycled polyester/spandex blend on the straps, band, and exterior feels downright plush, while the cooling mesh liner is exceptionally soft against the skin. Accessing the rear pocket is also significantly easier than it was in the original version, thanks to the addition of a stretchy, laser-perforated lining. ## **Best Simple Running Bra** ![Tracksmith Run Bra running sports bra](https://cdn.outsideonline.com/wp-content/uploads/2026/04/Tracksmith-Run-Bra_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Tracksmith) ## **Tracksmith Run Bra** **Sizes:** XS–XL **Lab Dry Time:** 5 (5=best; 1=worst) **Lab Air Permeability:** 4 **Lab Breathability:** 1 **Pros and Cons** \+ Luxurious fabric feels great \+ Dries quickly – Supportive up to B+ cup only We’ve been reaching for this bra for several seasons now, and it’s become a classic part of our running kit. The premium Italian materials–a high-stretch nylon/elastane blend—strike the perfect balance between stretch and support, while feeling fantastic next to the skin. Not only does the material wick sweat and dry rapidly, but it also maintains its shape, even through frequent use. The thick elastic rib band provides additional support, featuring Tracksmith’s signature racing stripe that—honestly—just makes us want to run fast. ![Brooks Chaser Padded Bra running sports bra](https://cdn.outsideonline.com/wp-content/uploads/2026/04/Brooks-Chaser_REI_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy REI) ## **Brooks Chaser Padded Bra** **Sizes:** XS–XXL **Lab Dry Time:** 3 (5=best; 1=worst) **Lab Air Permeability:** 3 **Lab Breathability:** 3 **Pros and Cons** \+ Good-looking on its own \+ Sewn-in padding doesn’t budge – Not as quick-drying as some We were excited about this bra before we even put it on; its dashing good looks, soft materials, and flat seams promised a perfect blend of comfort and style. In the field, it didn’t disappoint. Testers across the board found this bra flattering and functional. “This is a very comfortable bra!” exclaimed one who wore it for running and yoga. The crossover straps are a highlight, offering extra support with a stylish flair. We especially adore the sewn-in padding: It’s the ideal thickness and doesn’t budge like removable padding tends to (driving us insane). “This bra is supportive enough without squishing or giving that monoboob look,” said a C-cup tester. “It’s easy to get on and bounce around in and still feel supported.” ![Nike Swift running sports bra](https://cdn.outsideonline.com/wp-content/uploads/2026/04/Nike-Swift_h.jpg?width=3840&auto=webp&quality=75&fit=cover) (Photo: Courtesy Nike) ## **Nike Swift Bra** **Sizes:** XS–XXL **Lab Dry Time:** 4 (5=best; 1=worst) **Lab Air Permeability:** 2 **Lab Breathability:** 2 **Pros and Cons** \+ Zero irritation \+ Reflective details for safety when worn sans shirt – Not adjustable This pullover racerback bra relies on thoughtful detailing rather than complex adjustments. Stitch-free armholes eliminate chafing, while strategic perforations under the chest and along the spine maximize airflow. Its thin, sewn-in liner stays put, and even without adjustability, this bra proved comfortable and supportive for a range of testers. “This is one of those bras that just works,” said a tester. “I love the no-nonsense, nothing-to-think-about fit.” Others called this bra a “true workhorse.” Crafted from Nike’s signature Dri-FIT fabric, the bra wicks sweat effectively and dries in record time. The bottom hem—a blend of polyester, spandex, and nylon, anchors the fit—ensuring the bra stays secure during movement. “I needed this bra,” said a tester. “It covers all the right areas, leaving me feeling supported.” ## **How to Choose the Best Sports Bra** When shopping for sports bras, you need to consider four factors: intended usage, comfort, support, and breathability. ### **Usage** Are you looking for a bra to wear on its own or under your clothes? Will you be wearing it with a running hydration pack or hiking backpack? Do you want to be able to do yoga, Pilates, or other exercises on your back (and so, don’t want clasps or hooks back there)? Do you need your bra to carry your phone (or do you always wear a pack or pockets elsewhere)? ### **Comfort** Comfort is personal. Nothing can replace trying on the bra to ensure it fits your body and the fabric feels good against your skin. Each brand sizes their bras differently, so be sure to try on a range of sizes. ### **Support** When it comes to support, different sports bra categories like “low impact” and “medium support” can be confusing because different brands define them in different ways, and the amount of support needed for various activities completely varies by the individual. In general, sports bras marketed for low-impact activities like yoga, hiking, or cycling will offer less support and technical features than those for high-impact activities, like running or HIIT classes. On the flip side, sports bras designed to offer higher support may be less breathable and more constricting. If you have a small cup size, you may find that low- and medium-support sports bras work perfectly well for high-impact activities, but women with larger cup sizes often need those “high support” sports bras even for some low-impact activities. Whatever you choose, know that the bra’s underband—the most important part for support—should fit securely but not so tightly that you can’t breathe. The straps should not dig into your skin or leave red marks when you take the bra off. ### **Breathability** Too much sweat accumulation on a sports bra is not only uncomfortable but unhygienic, trapping bacteria on your skin and back. Sport-specific fabric blends—often made with polyester, nylon, or merino wool—should have strong moisture-wicking properties, and bras made of thinner fabric will allow more heat and perspiration to pass through. ## **How We Tested Sports Bras in the Field** - **Number of testers:** 11 - **Number of bras tested:** 29 this season, 81 total - **Hours working out in test bras:** 800+ - **Toughest testing conditions:** Two-plus hours whitewater paddling and then hiking from the bottom of the Grand Canyon to the South Rim while carrying a backpack full of gear. Close second: Downhill skiing with a toddler. Over the past three seasons, we’ve put 81 sports bras through their paces. Our testing grounds included everything from running, mountain biking, skiing, and HIIT to lower-impact activities like yoga, gardening, chasing toddlers (or teenagers), and even sleeping. This season alone, we tested 29 new sports bras daily over four months—often swapping between multiple activities in a single day. We then measured their performance against past category winners. For a sports bra to make our short-list, at least two testers had to agree on its comfort and functionality. From there, we narrowed down the contenders based on sport-specific performance, style, and value. ### How We Test Sports Bras in the Outside Lab ![chart showing lab data on sports bras measuring breathability, air permeability, and dry time](https://cdn.outsideonline.com/wp-content/uploads/2026/04/Best-Sports-Bras-Data.png?width=3840&auto=webp&quality=75&fit=cover) (Illustration: Outside Lab) ### **Dry Time** The lab tests drying time by soaking each sports bra and then recording how long each needed to dry. Each bra was weighed while dry, then soaked in tap water until all of the material had absorbed water. After soaking, they were hand wrung until all excess water stopped releasing from the fabric, leaving a fully saturated, but not soaked, shirt. The saturated bras were weighed again to get the “wet” starting point and then hung with a hanger on a clothing rack to dry. Weight was recorded every hour to start and then every 15 minutes as they approached dryness, stopping when the sample was within 4 percent of the original dry value. Allowing for 4 percent of weight gain (a few grams) takes into account any dirt particles that could be introduced from the tap water or environment, and hemmed areas that may hold a little moisture, even though the overwhelming majority of the sports bra is dry. Sports bras were graded on a scale of 1 to 5, from slowest to fastest drying. ### **Air Permeability** Air permeability is a measure of how much air (in volume) is able to move through a fabric. It is not the same as “breathability” which measures how moisture vapor (sweat) moves through a fabric. The more air permeable, the more the breeze makes it through and reaches your skin directly to help when you’re working up a sweat. To test this in the [Outside Lab @ CU Denver](https://outsidelab.outsideonline.com/p/1), we use a James Heal AirPro, a machine that uses a vacuum pump to pull air through fabric clamped between plates with a specific diameter opening to measure the flow rate at a pre-set pressure. The greater the volume of air getting through, the more air permeable. This lab test only evaluates the material itself, and can’t account for how the cut and design of a garment aids its airiness. Sports bras were given a score of 1 to 5, from least to most air permeable. ### **Breathability** Breathability is the movement of moisture vapor (sweat) through a material. Moisture is thicker and harder to move than air, which we measured with our air permeability test. To test breathability, we use a modified version of the standard ASTM “Upright Cup Method,” which works by sealing a section of fabric—the cup area for sports bras—over a bowl of water with a maintained temperature of 100-degree F. This temperature helps to simulate human body temperature when exercising, and is maintained with the use of a hot plate. Since the Outside Lab is located in Denver, the air is generally dry and holds a relatively low humidity level to help draw moisture through samples during testing. Moisture vapor transmission, or breathability, is recorded by measuring the combined weight of the sample and bowl over time. The more weight lost during the test, the better the breathability score. The weight of the sports bra by itself is also taken at the start and end of the test. This shows how much moisture became trapped in the material during testing, which can affect the breathability. This weight gain, if any, is used when scoring each sports bra—more moisture trapped in the fabric can lead to a slight downgrade in score. Sports bras were graded on a scale of 1 to 5, from least to most breathable. It’s important to note that our test in the Outside Lab only accounts for the fabric itself, not taking into consideration the fit, which, combined with air permeability and sweat wicking, can affect how a sports bra feels in use. Lab data is important, but it’s best to combine it with the results from field testing for a more complete view of the product. Sports bras were given a score of 1 to 5, least to most breathable. ## **Meet Our Lead Tester** **Lisa Jhung** lives and works in Boulder, Colorado, where she writes, edits, and tests gear by doing a variety of outdoor winter sports, including running (road, trail, and full-on mountain), Nordic skiing, snowboarding, and dog-walking. She also does yoga and lifts weights, sometimes by carrying flagstones around her yard and doing overhead squats and chest presses with a digging bar. She likes to get sh\*\* done while strength training.