Made in the USA. Alpaca technology engineered to provide ultimate comfort and performance. Our Socks are engineered to provide warm, dry, and long-lasting comfort. Using our special blend of the finest Alpaca yarn with microfiber ensuring optimum performance and durability. Naturally water-resistant, Alpaca Fiber provides inherent temperature control and moisture-wicking properties that protect your feet more than any other fiber! This Relaxed Fit has no top band for non-constricting comfort, a combination of elastic and spandex for increased stretch, reinforced from heel to toe for durability with terry lining for added warmth and dryness. Non-Binding Diabetic comfort.