I have a big pumpkin head and blunt ears. These things are great. The inner steel ring is flexible enough to be perfectly fitted to your head. The muff that covers your ears is oversized so you don't make a mistake and slip out of it. Inside they are cute and fluffy. They protect against wind and cold without impairing your hearing. Bonus: They're perfect for wearing under a ponytail or with hair if you leave them loose.