This officially licensed Mad Hatter Hat is made of a cotton/poly blend of green velvet-like fabric with a "In this style 10/6" patch attached. A yellow polyester band with maroon circles and molded buckle add authenticity to the hat. An adjustable strap inside hat brim ensures a secure and comfortable fit. The brim is approximately 5" in width, hat diameter is 18" and it is approximately 11" tall. To achieve the full height of the hat, there is an interior zipper that hides an extra section that you can stuff. Add this detailed hat to your sexy Mad Hatter costume for a great finishing look.