Bali Women's Cool Conceal Minimizer Non-Foam Underwire Cup Back Lining: 80% Nylon, 20% Spandex; Inner Center Belt, Inner Strap Extension: 100% Nylon; Strap Pad: 100% Polyester; Cup Lining: 88% Polyester, 12% Spandex; Center Belt Lining: 80% Nylon, 20% Spandex; Strap Extension Lining: 79% Nylon, 21% Spandex; Back, Center Belt, Strap Extension, Top Cup: 46% Polyester, 28% Nylon, 26% Spandex Imported Hook and Eye closure Machine Wash Cool conceal lining Encased dream wire comfort Convertible/adjustable straps Modesty and wicking benefits Improved wire comfort and support