Warrior Alpaca Socks - Women's Toasty Toes Ultimate Alpaca Socks 47Alpaca/38Acrylic/9Nylon/6Lycra Machine wash in cold, lay flat to dry or tumble dry on cold/air setting. Do not use heat. The thickest alpaca terry lined crew sock made for keeping feet cozy, warm and dry. Made from Natural Alpaca and other synthetic fibers and is 100% Wool Free, Hypoallergenic, and allows feet to breathe. Heavy knap lined from the tip of the toe to the top of the sock opening with a reinforced toe and heel as well as arch support. Our warmest sock available keeps feet warm and cozy, naturally wicking away moisture and propels odor. Machine wash and tumble dry.