Dainty delustered hearts cover glistening satin fabric. Softly seamed stretch foam lines silky cups, for shapely support without show-through. Famous crisscross frame lifts and contours, for more natural curves under clothes. Sexy sweetheart neckline dips just enough to tantalize. Straps stretch-adjust in back. Fiber Content: Cups Cup Lining Cup Extension Center: 100% polyester. Foam: 100% polyurethane. Back: 81% nylon 19% spandex. Center Cup Extension Lining: 100% nylon. Exclusive of other trim and elastics.