You cover your feet with socks and shoes, so insulate your brain box, keep it warm and functioning despite blergs and whatever else winter throws at you. Otherwise your head will freeze and your nose will run and people will think ewwww. It’s fleece lined and suitable for luxuriating in the cold, or performing or spectating feats of strength. Stuffs in stockings. Don’t get it for you, get it for your ears, they need clothes too.
Ships in a few weeks.