This beautiful underwire bra has flexible foam cups that provide a completely smooth look under clothes Fabric Type Inner center belt: 100% nylon, center belt lining, cup linings: 100% polyester, cup pad: 100% polyurethane foam, cup, back: 85% nylon, 15 % spandex, exclusive of trim & elastics. Closure Type Bras Underwire Type Wired Strap Type Convertible About this Item Smooth invisible line-free look with flat straps and continuous clean sides Thinner, more flexible foam cups Soft sueded fabric on outside and cup lining Quick Change straps switch easily to crisscross styling No irritating tag, for the ultimate in comfort and invisibility