Whether you're a yoga maven or a boot camp beast, this sports bra has you covered. The medium-support bra cools out your training with Climachill fabric that ventilates and cools on contact. Features skinny racer-back straps and mesh back inserts. Techfit focuses your muscles' energy to generate maximum explosive power, acceleration and long-term endurance. 82% polyester / 18% elastane doubleknit.