The NWT Hollow Performance Alpaca Boot Socks in unisex size Large and gray color are high-quality outdoor socks made in the United States. These socks are designed to be worn with boots, providing extra warmth and comfort during outdoor activities. Made from 70% baby alpaca, 27% nylon, and 3% spandex, these socks are machine washable in cold water and hang dry for easy care. With a boot length and durable construction, these socks are perfect for men seeking performance and style in their footwear.