Made by women, for women. Designed for running and high intensity sport, this bra gets it done. The adjustable straps tailor to your comfort and offer medium support all the way around each breast. No clamping. No underwires. Just top-level support. And its recycled polyester Herbafoam™ cups means it's more sustainable than ever.
Fit & Design:
Supports each breast, all the way round
Light padding and a higher neckline keeps you covered, comfortable, and supported
Sweat-wicking fabric and a full mesh racerback panel for ventilation
Features responsive, premium elastic straps that move with you and can be adjusted, to secure the fit and provide additional support
Style Variants
Available Colors: Black, Grenadine
Size Reference for On Performance Flex Bra
Available Sizes: XS (D-DD), XS, XL





























