Under Armour Performance Tech collection offers technical features and new composition that will give any athlete a serious edge. Mesh channels, half cushion footbed, and new poly/cotton construction means great feeling and fast drying - what you need to succeed. 71% Polyester, 26% Cotton, 3% Spandex Imported Pull On closure Machine Wash Shoe Size: Men 8.5-13, Women 10-14 Medium cushioning throughout foot for all-day comfort and protection Mesh panels for added breathability Embedded arch support helps reduce foot fatigue Fitted heel contours around foot for a better fit Material wicks sweat and dries fast