This specially-designed compression sleeve for the ankle, features high-density, activated copper infused into the yarn. It provides comfortable support to help enhance circulation, reduce swelling, improve flexibility and ease soreness, stiffness and pain. Great for men and women. Polyester/spandex infused with copper ions for antimicrobial protection. Ankle Compression Sleeve. Sizes available in Medium (fits men's shoe size 6-8 1/2 and women's 7-9 1/2), Large (fits men's shoe size 9-11 1/2 and women's 10-12 1/2), or XLarge (fits men's shoe size 12-14 1/2 and women's 13-15 1/2).