A high coverage performance sock that is ready for any adventure. This mid-weight ultra long sock extends up over the calf for extra warmth. Two leg bands and snug arch ensure there is no slipping throughout the day. These socks have a fantastic feel due to a high alpaca content (75% U.S. Alpaca, 23% Nylon, 2% Lycra) yet maintain excellent durability and stretch from added nylon and lycra.