Fabric Composition : Strapless top composition: Cotton 99.3%, Spandex 0.7%Pants composition: Fabric surface layer: Cotton 64.4%, Polyester Fiber 35.6% (with glue) Fabric bottom layer: Polyester Fiber 96.1%, Spandex 3.9% (with glue) Liner: 90% Polyester Fiber 10% Cotton Ribbing: Cotton 95.8%, Spandex 4.2%