When things get a little chilly, you can cast Incendio to make yourself a little fire.
The Muggle BluesIf you're a wizard, you can use magic to keep yourself warm! We bet there's even a spell that can make your head warm without even wearing a hat. The inside-out variant of the hat is navy blue and has "Ravenclaw" knit into the side of the hat, along with the Ravenclaw raven on the side.Of course, if you're a muggle, like we are, then you can't waggle a wand at the cold to make it go away (unfortunately)! This one is officially licensed from Harry Potter and you don't need any magic to wear it.