Thank you for viewing! This cap was made by combining remnants of sake bags (persimmon tannin dyed) and a large fishing flag (persimmon tannin dyed, iron mordant dyed) that were actually used in sake brewing. It's a one-of-a-kind item with a unique design. It was made using a 58cm pattern, but the inner diameter can be adjusted from 57 to 59.5cm with the size adjustment belt at the back. The lining is a thin navy cotton fabric. A thick adhesive interlining is used for the brim. Size: Inner diameter 57-59.5cm (with size adjustment belt) Crown 17cm (from the bottom of the crown to the top of the head) Brim (visor) 7.5cm (front) Measurements are taken by a layman using a measuring tape. Please understand that there may be some errors. Although it has not been used after being made into a hat, I purchased the sake bags and large fishing flags that were actually used, cleaned them at home, and used persimmon tannin dyed materials. There may be stains and uneven dyeing that cannot be completely removed. Please refrain from purchasing if you are concerned. Please feel free to contact us if you have any questions. It will be shipped folded. If you are considering purchasing, please read the profile section. #SakeBag #LargeFishingFlag #PersimmonTanninDyeing,IronMordantDyeing #OneOfAKind #Handmade