79% Acrylic, 13% Nylon, 5% Polyester, 3% Spandex / Available in Youth size 6-8-1/2(fits youth shoe size 12-4 or ladies shoe size 4-5) OR Adult Size Medium 9-11 (Fits Ladies Shoe Size 5-10 or Men's 4½ to 8½)/ Made in the USA / Great look for sport teams or for everyday use.