Rabbit fur knit cap (Measurements by amateur) 49cm-52cm My head is on the larger side, and the size didn't fit. It seems suitable for those with smaller heads or elementary school children. This knit cap uses brown rabbit fur, so it feels very soft, smooth, and pleasant to the touch, and it's warm. I only tried it on, and I haven't worn it outside. It's over 10 years old. I don't feel any deterioration. If you understand that this is a used item, would you like it?