A tight-fit crop top that will keep you cool.

Outfits for the active life are all about pieces that are easy to wear with confidence. This adidas by Stella McCartney pick blurs the line between a sports bra and a tank top, letting you take on your workout in a combo of both. It's made with HEAT.RDY technology that is designed to keep you going when things heat up, and laser-cut perforations keep the cool air flowing. The material is buttery soft and perfectly stretchy, giving you the right fit every time. A classic racerback prevents straps from slipping or digging in.