*TOP SELLER* Our Survival Sock is a terry loop lined mid-weight sock designed for a wide range of outdoor activities and climates. The soft alpaca terry loops are combined with a durable nylon outer shell. Reinforced foot arch band and a ribbed knit ankle support ensure a proper fit every time. This warm and comfortable sock is our best selling style! Hypo-allergenic, un-dyed, and odor resistant. Contents: 78% U.S. Alpaca, 20% Nylon, and 2% Lycra. Care Instructions: Machine Wash and Dry. Colors include variations of grey and brown. If you purchase this item online, we will ship based on your size selected. You may received a variation of grey or brown. If you want to select a specific color, please call or email after you place your order and we will do our best based on availability to match color with size.