Sock Guy Wool Sasquatch Crew 6" Socks: Sock Guy Wool Sasquatch Crew 6" Socks in Turbo WOOL, a superior blend of Merino wool & polypropylene. This is 5 times the strength & durability of Merino alone keeping your feet drier & provides excellent insulation in all weather conditions. 50% Merino WOOL & 50% polypropylene Shrink-resistant & itch-free Stretch-to-fit sizing Easy-fit cuff for perfect fit on any foot Out-wicks & evaporates moisture better than any other wool sock on the market today