This is a North Face knit hat ☺︎ It has been washed once and stored at home. There is no size listed on the hat, but I think it's a size for children aged 1-3 years old. The width is about 17cm when laid flat and not stretched. It's soft and stretches quite a bit, so I think it can be used for a long time. My 5-year-old daughter could also wear it. Please purchase only if you understand that it has been stored at home.