The genuine angora hairs used in these bed socks trap air like an insulated window, providing exceptional warmth eight times that of wool, helping to improve circulation. Made from the silky, fluffy hair of angora rabbits that are shorn after a full year's growth, the socks are blended with wool and nylon for durability. They are well-suited for those who suffer from cold feet while sleeping, warding off chilblains. Light ribbing keeps the socks securely about the feet without unwanted constriction. 50% angora/30% wool/20% nylon. Gray. Presented in our signature gift box.