Under Armour's 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, 7% Nylon, 3% Spandex Made in the USA or Imported Pull On closure Machine Wash Shoe Size: Women 6-9 Ultra-thin, lightweight construction for a barely there feel Breathable material wicks sweat and dries fast Embedded arch support reduces foot fatigue Fitted heel contours around foot for a better fit