85% polyamide, 15% elastane. Outer fabric: 85% polyamide, 15% elasthane, Activates your muscles before you do sports , Increase your performance while you do sports, Help you to regenerate more quickly after doing sports, Stabilize ligaments and joints, Ergonomically right/left design, Hand linked seam over toes for extra comfort, Padded sole, Toe and heel cushion, Measuring point is the widest area of the calf