Is this dinosaur breathing fire? Isn't that more of a dragon thing? Or maybe he is just eating an asteroid! That makes more sense. These unisex socks are made in the USA of 75% Turbowool (50% merino wool, 50% polypropylene), 15% nylon, and 10% spandex. The S/M will fit women's shoe sizes 6-10, while the L/XL will fit men's sizes 9-13.