The Alpaca Terry Socks are extremely warm, excellent for the outdoor worker or sportsmen, and being a natural fibre, will wick up the moisture from your feet. They have also been known to work extremely well for those cold feet at night, making them part of your night atire. They are extremely popular, and definitely bring us many repeat customers. Enjoy! Made of:85/15 Alpaca/Nylon. Washing Instructions: Hand wash in cool water, lie flat to dry. Note: I have always washed all my socks in the washer, in cold water and then lie flat to dry - works great. Please contact us with the order.......Coming Soon: Our service provider is working to incorporate an secure online payment service. Until such time we thank you for your patience.