Reversible casquette. Size: 55cm. A perfect size for women. It's reversible, with a fabric that resembles denim on one side and a plain light blue on the other. The denim-like fabric is 100% cotton. The light blue fabric is also likely cotton, but it's uncertain. Both sides use knit fabric. The brim has interfacing. The band is ribbed. The band is black. It fits snugly without being tight. Pattern: An no Ki When washing, hand washing or using a laundry net is recommended.