Playtex 18 Hour Active Lifestyle Wirefree Bra Polyester/spandex/cotton/nylon Imported Molded seamless cups give you super support and shaping. (Totally smooth under clothes.) Molded seamless cups give you super support and shaping. (Totally smooth under clothes.) Side slings contour your curves for added support without wires. Extra-wide cushioned straps help relieve stress on your shoulders. (V-back design helps keep straps from slipping down.) Softly brushed bottom band won't chafe or irritate skin.