3 Pairs Pack Men's 75% Merino Wool Hiking Boot Socks 10-13 Materials : 75% Merino wool , 20% Nylon , 3% Polyester , 2% Lycra Size : 10-13 ( Fit men shoe size 7-12) length: 11" From top to heel Moisture management fiber in foot bottom wicks moisture and maintains cushion Heavy Weight high performance socks for low price