Cushioned low cut wicking coolmax socklet. tery padding throughout heel and underside of the foot provides shock absorption. Air vents to upper to help keep feet cool. Flat seamless toe seam and cushioned toe protection to help prevent blisters. Extended padding to help protect achilles heel. Arch grip section and Y heel for an optimum fit. 82% Colmax polyester, 13% Nylon, 4% Elastane and 1% Lycra.