The Dahlia is a super stiff women's felt wide brim hat. Often referred to as a women's "Boater" hat with its flat crown. The Dahlia is a staple and has a spot in every closet, as it will carry over to any season of the year. The Dahlia has a 3.5" (9 cm) crown + 3.25" (8.5 cm) brim and is made of 100% Australian wool. The Dahlia comes in sizes 57 S/M and 59 M/L and features an adjustable inner band. Be sure to check out the removable hat bands as well!!