The Miracle Bamboo Comfort Bra Deluxe Set of 3 is crafted from breathable, seamless, comfy-stretch viscose from bamboo fabric, offering exceptional softness and a smooth feel for all-day comfort, lift, and support. Designed with an invisible seamless fit and easy front closure, these bras eliminate painful straps and underwires, are machine washable, and run smaller than department store sizes, so please size up. Note that the bras ship in mail-order packaging without a retail box, and no refunds are accepted. Made from 70% nylon, 22% viscose from bamboo, and 8% spandex.