Head circumference ~57cm (size adjustable via ribbon on the inside) Brim vertical diameter 33cm, horizontal diameter 30cm, width 9~11cm Ribbon length 73cm “Made from a light paper-based material that has gotten popular in recent years. Sensitive to rain, so please make sure not to get it wet. In case it does get wet, please stuff a towel inside to make sure it keeps its shape and dry it off immediately.”