Sock Guy Wooligan 4" Socks: Sock Guy Wooligan 4" 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. Shrink-resistant & itch-free Arch support Padded foot bottom Easy-fit cuff for perfect fit on any foot Out-wicks & evaporates moisture better than any other wool sock on the market today