Bali Women's Comfort Indulgence Underwire with Lace Detail Bra Strap Lining: 100% Cotton; Outer Strap Lining: 100% Polyester; Center Belt Lining: 100% Nylon; Cup Lining: 94% Polyester;6% Spandex; Cup/back/strap Center Belt: 76% Nylon/24% Spandex Hook and Eye closure Hand Wash silky smooth lining for added comfort and modesty 2 ply back with comfort band provides back smoothing style no 3508