Under Armour Women`s Essential Training No Show Socks 6 Pack 45% Polyester, 30% Spandex, 22% Cotton, 2% Nylon Pull On closure Machine Wash Flat knit construction conforms to foot for superior touch and feel. Updated stitch design for a more flattering silhouette. Material wicks sweat and dries fast. 6 Pack Polyester/Nylon/Spandex