60% Alpaca, 20% wool, 20% nylon. The best mix for durability & warmth!
Small (sock size 9-11) fits women's shoe size 6 - 8.5
Medium (sock size 11-13) fits women's shoe size 8.5 & up and men's shoe size 8-11
Large (sock size 13-15) fits men's shoe size 11+