The Miracle Bamboo Bra is a soft wireless bra that offers comfort and support all day long. Smooth and soft,Easy front closure,Wireless support,Wide comfort straps. Easy Front Closure! 70% nylon/22% viscose from bamboo/8% spandex Please see size chart: Miracle Bamboo Bra's run smaller than department store bras. The Miracle Bamboo Bra conforms to your natural shape to provide all day comfort and support without irritating underwire. Soft material helps wick away moisture. A front closure makes getting dressed a breeze. Machine wash cold, lay flat to dry. 70% nylon/22% viscose from bamboo/8% spandex