... nylon Product standard: ASTM D3421-75 Detail product descriptionwrist support,ankle support,ankle brace, knee braceSize : S,M,L,and XL Feature ... is also very comfortable to wear, The ankle brace offers a high level of protection and comfort for athletes of all ages ... for hours,Maximum comfort and maxium protection.First left or right ankle and any style shoe Ankle brace with face up front and ...