The 9 Best Sports Bras for Small Chests of 2021

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Finding the right fitness clothes is crucial for the success of your workout. You need clothes that fit properly and are comfortable, so you can avoid messing with your wardrobe and focus on the workout at hand. For many women, the right sports bra is a top priority when it comes to being comfortable in their workout. It needs to keep them snug and secure, but it can’t be too tight.

For women with smaller chests, finding a sports bra that keeps them feeling secure throughout their workout is a common problem—no one wants extra wiggle room when it comes to sports bras. Thankfully, the fitness industry is becoming more aware of size inclusivity every day, making it much easier to find a sports bra that works for you, even when your chest is smaller than average. 

Here are the best sports bras for small chests.

Our Top Picks
Complete with adjustable straps and a low-cut back, this lightweight choice will almost make you forget you're even wearing a bra.
With no underwire and a reversible design, Athleta's Crossover Bra gives you two looks for the price of one.
Promises a bounce-free workout and features gel-infused straps to keep your shoulders comfortable and pressure-free.
A sports bra that enhances your curves and is complete with anti-slip straps so you can take on more laid-back exercises.
Tailored to those with smaller chests, this option is ideal for high-impact activities and can be styled as a crop top.
With three different ways to wear the straps and sets of removable pads, this option allows you to personalize your perfect fit.
For when you can't be bothered with snug-fitting coverage during workouts, Under Armour's bra features breathable mesh panels.
No need to worry about not being held in when you're sporting Outdoor Voices' racerback bra, designed to provide medium support.
A versatile pick that can be worn everyday or during high-impact exercise, Glamorise's sports bra provides full coverage.

Best Overall: Lululemon In-Alignment Sports Bra

Lululemon In-Alignment Sports Bra

Lululemon specifically designed this bra for A and B cups, bringing support, separation, and coverage for petite sizes. It also has adjustable straps to ensure you find the perfect fit.

The smooth, lightweight material is ideal for everyday comfort, as well as for light workouts—the quick-drying fabric means you will be supported and dry, even in sweaty activities like hot yoga and Pilates. The bra comes in sizes 2 through 12. 

Best Reversible: Athleta Crossover Reversible Bra

Athleta Crossover Bra

This medium-impact bra is designed with internal bonding that provides support and shape—no underwire necessary. The reversible style gives you increased options, and the v-neck and crossover back keep you snug yet cool in your workout.

The nylon and spandex material provides comfort with an easy fit, making it a versatile option for gym workouts or for everyday use. This bra comes in sizes 32A through 40C.

Best Budget: Champion Spot Comfort Sports Bra

Champion Spot Comfort Bra

Champion’s “The Spot Comfort” sports bra provides cup definition, acknowledging your shape while keeping you snug for a no-bounce workout. The targeted mesh ventilation makes sure that no matter how much you sweat, you’ll stay cool and dry.

To keep your shoulders pressure-free, Champion has designed gel-infused straps for additional comfort, and the adjustable straps make sure that you’re able to customize the fit of your bra. The sports bra comes in sizes 34C through 42DDD. 

Best Low-Impact: Outdoor Voices Double-Time Sports Bra

Outdoor Voices Double-Time Sports Bra

This sports bra has a flattering, feminine style that accentuates your curves, with straps that sit on the outside of your shoulders and a scoop that still provides enough support for low-impact activities like yoga or walking.

With mid-weight, textured compression material, and a sizing chart that goes down to 30AA (and runs smaller than other sports bras, according to reviews), small chested fitness enthusiasts can easily find what they’re looking for. The bra comes in sizes 30AA through 40DD. 

Best High-Impact: Athleta Conscious Embossed Crop

Athleta Conscious Embossed Crop

This bra is specifically designed with small-chested athletes in mind. The wireless compression support is comfortable and flattering, with removable pads to give you more options. The cropped, razor-back style provides a more modest look, perfect for high-impact activities like running or HIIT workouts.

You’ll stay cool and comfortable, thanks to the bra’s buttery soft, breathable fabric. It comes in sizes 30A through 40C. 

What Our Editors Say

"If you occasionally like your sports bras to double as crop tops, then you'll want to invest in a few of these. I'm a B cup and gravitate toward low-impact barre and Pilates workouts, so the low-to-medium level of support is exactly what I need. For bouncier or higher-impact workouts, you may want a sports bra with more support." Ashleigh Morley, Editorial Director, Commerce  

Best with Padding: Handful Adjustable Sports Bra

Adjustable Sports Bra

Your Handful’s sports bra is designed to empower women to feel confident in the bra they’re wearing, no matter how small (or flat) their chest is. With breast cancer survivors in mind, this sports bra comes with sets of pads that equate to either a B cup (two sets) or C cup (three sets).

It also has adjustable straps that allow you to choose the most comfortable style for whatever workout you’re doing, as well as stash pockets that make storing keys or a credit card easy if you’re on a run or walk. The bra comes in sizes extra-small through extra-large.

Best Lightweight: Under Armour Infinity Limitless High Sports Bra

Under Armour threw out “traditional construction rules” with this design, embracing a figure-eight pattern for the most aerodynamic fit and lighter feel. The bra is specifically tailored for activities like running, court sports, and aerobics, with lightweight mesh panels for increased breathability, no matter how sweaty your workout is.

The smooth, sweat-wicking band has a hook-and-eye closure, and adjustable straps make sure you’re able to find your perfect fit. The bra comes in sizes extra-small through extra-large.

Best for Running: Outdoor Voices Doing Things Sports Bra

sports bra

This best-selling Outdoor Voices bra is made from tech-sweat fabric that allows for ultimate breathability. The mesh razorback design is perfect for comfort, mobility, and medium-intensity workouts. It's ideal for runners who need a reliable, comfortable sports bra to keep up with their workout.

The bra comes in sizes 30AA through 40DD. 

Best Plus-Size: Glamorise Elite Underwire Sports Bra

With microfiber and mesh material, double-layer underwire cups that provide shape and lift, and adjustable straps, this sports bra has everything you need, no matter what size you are. It boasts “control bounce” and “wonderwire” for a padded, comfortable fit.

The ultra-secure fit, complete with hook and eye closure, makes this bra a great choice for everything from everyday wear to a high-impact workout. The bra is hand-wash only and comes in sizes 32B through 46G.

Final Verdict

Athleta’s Crossover Sports Bra (view on Athleta) has the most important components for small chested women looking for the perfect sports bra. It’s support level, material comfort, and versatile design allow a woman to feel feminine and comfortable for a moderate price point. The Lululemon In-Alignment Sports Bra (view on Lululemon) is also a favorite option for small-chested women looking for a new bra. The adjustable straps ensure that even the most petite women can feel confident in their bra, and the super-soft, quick-drying material is great for low-impact activities or everyday use. 

What to Look for in a Sports Bra for Small Chests

Adjustable Fit

For anyone with specific sizing needs, having the ability to adjust a bra can be the difference between wardrobe success and failure. 

Pad Options

Sports bras already flatten a woman’s chest—this often means smaller chested women appear flat when they wear a sports bra. Padded bras, or bras that come with padding options, can be the confidence-booster that some women crave. 

Flush to Skin Fit

How snug your bra hugs your breasts can make a huge difference in your comfort level during a workout. You don’t want your bra to have any additional room when you have it on.

Why Trust Verywell Fit?

As a former fitness coach, long-time wellness enthusiast, and current health editor, Lily Moe understands the importance of products that meet your individual requirements. As a marathon runner, she understands that the right workout clothes can greatly improve the quality of your workout experience. Most importantly, Lily always looks for research and first-hand reviews when it comes to deciding on a product. 

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