SUPPORT YOU CAN COUNT ON. With wide, comfy straps in a classic racerback design, the Nike Swoosh Sports Bra feels snug and secure while you move. Smooth, lightweight fabric wicks sweat to keep you dry, comfortable and focused. For every rep, step and jump—know that you're supported. This product is made with at least 75% recycled polyester fibers. Keep Dry Dri-FIT technology pulls sweat away from your skin to help you stay dry and comfortable.