Material. Cup / Crotch: 100% Pure Silk. Body Fabric: Silk-Cotton Blend (78% Organic Pima Cotton, 22% Silk). Details. Highly breathable silk and Pima cotton, hypoallergenic and soft. Non-slip and wide shoulder strap. Cover in Pima cotton to prevent irritation, no exposed rubber band. Elegant lace detail in front. Maximum support, working with your natural shape, and adding a level of comfort to this half-cup bra. Non-padded