Born Primitive Moxie Sports Bra in Cobblestone Medium Size medium 87% nylon, 13% lycra - Unrestricting fit with maximum support - Strappy back that moves with you - Medium-coverage neck for added support - Removable pads included No tradeoffs. That was the guiding principle when we created the Moxie Sports Bra. It features a comfortable front with medium-coverage and a flattering back design. The straps were placed appropriately to provide additional support without restricting your movement. The custom nylon-lycra blend moves with you every step of the way.