Playtex Women's 18 Hour Ultimate Shoulder Comfort Wirefree Bra Natural rubber latex/polyester/nylon/cotton/spandex Natural rubber latex/polyester/nylon/cotton/spandex Signature M-frame adjusts to your shape for smooth customized fit. Cushioned padded straps help relieve pressure on shoulders. (No more painful dig-in.) Seamed wirefree cups give you naturally shapely curves. Exclusive Spanette fabric stretches four ways for all-day support.