In our opinion, these are simply the best alpaca socks being made today! People return to our farm time and time again to buy more Extreme socks. Skiers, hikers, hunters, outdoorsmen and wmen, hockey players – you name it, if you have cold feet and like a thick, warm, double layer sock, these are for you. Cushy softness to be enjoyed whenever winter chills the toes. Wear these thick, terry knit socks as slippers inside. Made in USA of North American alpaca fiber.