71% Acrylic, 21% Nylon, 7% Polyester, 1% Spandex / Available in Youth size 6-8½(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) OR Adult Size Large 10-13 (fits ladies shoe size 11-12 or Men's 9-13) / Cushioned Acrylic Foot with Heel and Toe Construction / Made in the USA / Knee high length is a great look for sport teams or for everyday use.