I tried it on once after purchasing it, but it didn't suit me, so I'm selling it. Head circumference: Approximately 55.5-59.5cm Material: 100% cotton Color: Grayish blue ※ The following is quoted from the brand site Collaboration item of TANGRAM × RYUJI KAMIYAMA. A cotton cap featuring an arrangement of Ryuji Kamiyama's art on Tangram's original cap. Embroidery on the front and sides. This item is free size and can be worn by both men and women. You can also enjoy matching coordinates with the "HELLO "RAT"ANGRAM" series, which share the same color. Effective for all seasons, including protection from sunburn.