HEADBAND FEATURES TREADBAND'S "ATHLETIC" PERFORMANCE FABRIC Fabric Feel:Smooth, silky, everyday moisture management polyester wear.  Fabric Tech Specs:Lightweight, mositure-wicking performance fabric blended from polyester and spandex.  TreadGripStrip™ : Patent Pending synthetic rubber with symmetrical patterns that provide balanced and consistence grip on the skin. Lightweight, breathable, performance fabric90% polyester / 10% spandex One Size fits most Machine Washable Moisture-Wicking Quick-drying