Warrior Alpaca Socks - Women's Clog Alpaca Socks A great sock for your clogs or Birkenstocks that are durable and long lasting. Natural and undyed superfine alpaca in a rich dark brown. Alpaca is breathable and promotes circulation, while wicking away any moisture and keeping your feet dry and odor free. Alpaca keeps your feet warm in cold climates and cool in warm climates, a perfect all-season property. Hand or machine wash gentle cycle in cool water with mild detergent lay flat to dry