Wool Crew 6". Our Wool socks are made from 75% TURBOwool, a superior blend of 50% Polypropylene and 50% Merino Wool, which provides five times the strength and durability of Merino Wool alone. Shrink-resistant and itch-free, these socks will keep feet dry and warm in all weather conditions. SockGuy�s wool socks offer the same performance construction as our Classic collection, but with our unique TURBOwool yarns. Licensed by SockGuy.