Barely There Women's Custom Flex Fit Seamless Wirefree Bra (Pack of 3) Outer, Panel: 95% Nylon, 5% Spandex; Cup, Frame: 100% Nylon; Cup, Lining: 100% Polyester Imported Machine Wash Revolutionary sizing system combines 16 band/cup sizes into five simple sizes Flexible foam cups shape perfectly to your body for a custom fit Fuller coverage cups, sides, back and straps prevent bulges Elastic along top of sides and back for a custom fit Stretch underband provides additional support