These socks are size LARGE (women 9 1/2-10 1/2, men 9-11 1/2), They are 50% alpaca, 35% acrylic, 12% nylon, 3% spandex. Made in Peru, these socks are infused with aloe vera, a natural anti-microbial/anti-inflammatory for the ultimate in comfort. VERY comfortable socks and MACHINE WASHABLE!
