This is a Miffy bunny ear hat. It has a snap button under the chin, so the hat won't easily come off, and it looks warm, covering the ears completely. And, above all, it's cute!! The size is free. I put it on my six-month-old and one-and-a-half-year-old, and they were able to wear it without any problems. It's fluffy and seems comfortable to wear. Even children who don't like hats seem to be able to wear it.