This is a boater hat from CHRISTYS' LONDON. The size is 59cm, L. It's a rare, recent British-made piece. I purchased it at a hat shop in Japan, but it doesn't fit, so I'm selling it new and unused. Crown height: approximately 8cm, brim length: approximately 7cm, ribbon width: approximately 3.5cm Inner crown size: L size: front to back approximately 19.8cm, side to side approximately 16.8cm Thank you for looking.