Drymax Unisex Ultra Thin Skiing Over Calf Socks Drymax 65% Drymax/Olefin, 20% Polyester. 8% Nylon, 7% Elastaine Protective shin padding and anti-bunching instep Smooth top stays in place Dual layers knit toether keeps feet dry Flat toe seam, arch band, lower leg band and Y-heel improves fit and keeps sock in place Color-Replacementd size mark on toe for easy match-up after laundering