Lace: 77% nylon, 23% Lycra spandex Back: 79% nylon, 21% Lycra spandex Contour/t-shirt bra has underwires that support and give a rounded shape. Flexible cup offers average coverage, is lightly padded and has a seamless, embroidered, sheer mesh overlay. Opaque, seamless sides and back have covered elastic at edges for fit. Bandless front works well for women with short torsos.