Another in Moustard’s set of fun dinosaur socks, this time with cartoon pterodactyls being bombarded by falling, flaming asteroids, and below, the bones of all the dead… Well, that turned dark fast! Moustard Extinction Cotton Socks depict the events of a mere sixty-five million years ago, when dinosaurs are thought to have become extinct, with colourful images on the leg and black and white dinosaur skeletons buried away on the feet of these cotton rich socks. Your bones, and skin for that matter, might appreciate the softness, and the flat smooth toe seams used.