'As seen on TV' Playtex Secrets Lace Wire-Free # 4317 Bottom cup, fiberfill: 100% Polyester. Top cup, band, side back, cup extension: 100% Nylon. Back: 81% Nylon, 19% Spandex. Cup extension lining: 75% Cotton, 25% Polyester. Exclusive of other trim and elastics. bras closure Playtex Secrets Lace Wire-Free Bottom cup, fiberfill: 100% Polyester. Top cup, band, side back, cup extension: 100% Nylon. Back: 8 Country Of Origin: USA or Imported Units Per Package: 1