Classic ragg wool has been keeping hikers warm and comfortable for centuries. Our technical know-how adds performance and durability while retaining that classic ragg look. Memory-knit construction keeps shape, wash after wash. Classic ragg wool adds thermostatic insulation. Reinforced toe and heel add durability and longer sock life. 80% wool, 19% nylon, 1% spandex. Men's sizes: M (6-8.5), L (9-11.5) or XL (12-14.5).