I apologize. Before considering and purchasing, please read the self-introduction section and the product description section to the end. Comments that show a lack of understanding will be ignored. Conversely, if you don't understand something, please ask. I will reply as quickly as possible. I will reply even if it's late. Thank you for your understanding. ○ I would appreciate it if you could leave a comment as I would like to communicate with each other. This is a lightweight and convenient navy packable hat. It's a pocketable hat. I, who am 53cm, have room when trying it on. I purchased it from Mercari Shops, but there were no instructions, so I don't know the size. I bought it because my child was going camping, but they didn't like it, so it's still unused. Online, it said it was unisex. - Type: Packable Hat - Color: Navy - Features: Adjustable strap - Material: Nylon Those who understand the above content and the self-introduction section are welcome to purchase it as is. Responses from late afternoon to late evening will be handled the following morning or later. ※ Basically, shipping, fees, and other expenses are included, so I cannot offer discounts on comments. The price will not change from what I have listed. Thank you for your understanding and consideration before purchasing. Thank you for reading this long description.