Winner of the 1997 Backpacker Magazine's Great Sock Test. Maximum cushioning provides extra protection for extended periods. High density 2x1 rib welt top with nylon holds the sock up and in place. High density padding assures a comfortable, snug fit and shin protection. High density padding at the instep protects against lace pressure. Arch brace is knit with nylon for increased support and comfort. Flat knit side panel reduces compression, provides better fit and maximizes ventilation. High density padding in the sole cushions against shock, blisters and abrasions. Contents: 75% Wool, 24% Nylon, 1% Spandex