Under Armour brand mission is to make all athletes better through passion, science and the relentless pursuit of innovation. Today's athlete demands a sock that not only represents the look and feel of the brand, but that simultaneously provides useful, technical attributes bridging the gap between style and functionality. 90% Polyester, 8% Nylon, 2% Spandex Imported Pull On closure Machine Wash Shoe Size: Men 8.5-13; Women: 10-14 Medium cushioning placed strategically throughout foot protects high-impact areas without added bulk Mesh ventilation across top of foot for ultimate breathability Seamless toe delivers superior comfort and reduced irritation Strategic arch support reduces foot fatigue Fitted heel contours around your foot for a better fit Left/right specific fit Material wicks sweat and dries fast