Sports Bras
Support ThatActually Holds.
Supportive, flattering sports bras that lift, hold, and move with you. Adjustable straps, soft compression, built for real training — and comfortable enough to wear all day.
It-Girl Sports Bra
Adjustable straps and soft compression in a flattering cut. Supportive enough for training, comfortable enough to wear all day. Our most-loved sports bra — and it's easy to see why.
Shop It-Girl Sports Bra
“Finally a sports bra that actually holds without digging in. The adjustable straps make all the difference — I can get the fit exactly right.”
“Supportive enough for a full lifting session and comfortable enough to wear the rest of the day. This is my new everyday bra.”
“The fit is so flattering. I've gotten compliments every time I wear it to the gym. Ordered two more in different colors.”
Get Sports Bras in the Mystery Box
Every Mystery Box includes premium sports bras plus leggings, shorts, and matching sets — at a fraction of retail price. Starting at $49.
What level of support do these offer?
Soft-to-medium compression — ideal for lifting, yoga, HIIT, and everyday training. Adjustable straps let you dial in the exact hold you need.
Do the straps stay in place?
Yes — designed to hold their position through your entire workout. No slipping, no constant readjusting.
How do I choose my size?
Check the size guide on each product page. If you're between sizes, size up for more comfort.
How fast does it ship?
Orders go out in 24–48 hours with full tracking included. Free shipping on every order.
Can I get sports bras in a mystery box?
Yes — sports bras are in every mystery box tier. The 12-Piece includes 2 premium sports bras plus leggings, shorts, and a matching set.
What's your return policy?
Individual sports bras can be returned within our standard return window if unworn and in original condition. Defective items are always replaced.
What Makes a Good Sports Bra?
A good sports bra solves three problems that regular bras don't: movement control during exercise, moisture management during sweat, and a fit that stays consistent through a full range of motion. The most common complaint with sports bras — straps that slip, bands that ride up, or cups that gap — all come down to the same root cause: the bra wasn't designed for the specific demands of the workout it's being worn for.
Low, medium, and high impact — what's the difference? Impact level refers to how much movement the bra needs to control. Low-impact sports bras (yoga, Pilates, walking) prioritize comfort and flexibility over maximum hold. Medium-impact bras (weight training, cycling, HIIT) balance support with breathability — this is the most versatile category and the one most women need for gym training. High-impact bras (running, jumping, plyometrics) prioritize maximum hold and encapsulation, often with underwire or structured cups. The sports bras in this collection are medium-impact — built for real gym training with adjustable straps that let you customize the hold.
Adjustable straps vs. fixed straps — which is better? Adjustable straps are almost always better for gym training because they let you dial in the exact fit for your body. Fixed-strap sports bras are sized to a standard strap length that may or may not work for your torso length and shoulder width. Adjustable straps eliminate that variable — you can tighten or loosen until the bra sits exactly where it needs to, which is the single biggest factor in whether a sports bra stays in place during a workout.
Every sports bra at ActivewearBox is selected for strap stability, compression hold, and all-day wearability. Free shipping on every order. Want to add sports bras to a bundle? The Mystery Box includes premium sports bras — plus leggings and shorts — starting at $29.