For running and high-intensity sports. This medium support bra has adjustable straps for ease. No fastening. No underwires. Just top-level support. This sports bra has been built to minimize bounce without restricting your movement, it's got a higher neckline and light padding to help you feel secure and comfortable. Plus, reflective logos on the underband add a touch of luxury. The Performance Bra Flex is an update of the original. We’ve added responsive, adjustable shoulder straps, soft padded cups, and we’ve upgraded the materials for added feel-good. Sweat-wicking fabric and a full mesh racerback panel for ventilation help your body stay cool and let it breathe. Sports scientists have tested these improved materials, and lab-based wearer trials have allowed us to perfect the fit.