The Incrediwear® Ankle Sleeve is made of a therapeutic fabric that dramatically increases blood flow to help reduce pain, swelling and stiffness. Ideal for ankle pain, plantar fasciitis, tendonitis. Snug fit means it won't slip down or bunch up. Machine washable cotton/nylon/polyester/lycra infused with Germanium and Carbonized Charcoal. Machine wash. Import. Fits shoe size: Small/Medium (Women’s 5-9.5, Men’s 4-8.5), Large (Women’s 10+, Men’s 9-13), XL (Women’s 13+, Men’s 14+).