Our Low Pro Alpaca Sock is all the things you love about our Cottage Socks but in an ankle high version! This low profile design has alpaca terry loops through the entire sock for cushion, comfort, and maximum moisture wicking. There is a heel tab to keep the sock in place and prevent rubbing. The arch band wraps around the entire sock for a proper fit and the heel and toe have been reinforced with nylon for increased durability. Hypo-allergenic, un-dyed, and naturally odor-resistant. Contents: 78% Alpaca, 20% Nylon, 2% Lycra. Care Instructions: Machine Wash and Dry, See Label. Medium(Ladies/Mens shoe 6-8). Large(Ladies/Mens shoe 8-1/2 to 10-1/2). XLarge(Mens shoe 11 and up).