We earn a commission for products purchased through some links in this article. Does the Knix Catalyst Truly Provide Max Support?
A sports bra is a female runner’s most essential piece of gear: It’s like a soul mate that holds her up through good days and bad—and helps her be the best runner she can be. But finding the perfect match isn’t easy, so we tested a range of styles and sizes to find out which bras inspired true love. Get ready to meet your new favorite.
We categorized the bras by size. Here you’ll find five that are perfect for sizes A/B.
Not the right size? Browse all of our sports bra reviews.
Bargain
C9 Champion Power Shape Max High Support
Get figure-flattering support—for cheap—with this padded model, which uses straight straps and an adjustable back clasp (just like standard bras). “It kept the girls from budging and looked great doing it,” says one B-size tester. The trade-off is breathability: Its molded cups trap sweat, making this better for shorter workouts than for long runs. $23; 34B-40DD; target.com
Runway Style
Oiselle Hi Low Bra
Color-blocked panels and a keyhole opening on the back keep this from being just another boring top. Even the fabric (featuring a proprietary nylon) feels softer and more luxuriant than standard-issue stuff. Adjustable shoulder straps complete the bespoke fit. $54; 2-12; oiselle.com
Breathability
The Ultra Run Bra: No Padded Cups? No Problem
Constructed with sweat-mopping polyester and nylon mesh panels (in the Y-back and center chest), this simple tank kept testers truly dry—even in the “trouble spot” between the breasts, where most runners experience clamminess. $49; XS-XL; patagonia.com
Long-Haul Comfort
CA Notice at Collection
This racerback almost makes BodyGlide obsolete: Wearing it during a sweaty five-hour marathon, one tester experienced no chafing. Credit the soft seams and fabric, which blends bamboo with organic cotton (yes, cotton)! Yet it dries as quickly as many synthetics. $32; XS-XL; amazon.com
Busty Va-Va-Voom
C9 Champion Power Shape Max High Support
This pullover has removable cups that flatter and support. Testers loved it for speedwork as well as postrun coffee stops. Although the modesty pads do absorb sweat, the moisture-wicking lining feels dry and makes this bra easy to take off. $30; XS-XL; amazon.com
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Does the Knix Catalyst Truly Provide Max Support
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