A cooking hat. It has a brim in the front and an elastic band in the back. Because of the elastic band in the back, you can tie up long hair and put it inside the hat. There are 8 unused hats of the same type, purchased for replacements or spares. If you wish to buy in bulk, I will sell them for 300 yen x (number of hats) + 300 yen (for shipping), so please let me know in the comments.