This is the black cap from Insta360. It was opened for shooting purposes but is completely unused. The following is a quote from the product information. A classic baseball cap with a structured design to maintain its shape. Customized with an embroidered Insta360 logo. Adjustable strap for sizes 56-59cm. Made with soft, breathable material for all-day comfort. Designed to enjoy action all day, just like your Insta360 camera. Retail price: 4000 yen (Insta360store) No smoking. No pets. To prevent any issues, returns are not accepted. Please purchase after understanding the product details. Thank you very much.