Standard size: 7 1/4 about 58cm

There is a adjutable belt behind the back of the hat.  It can adjust the size

Suggested use of the crowd:Head circumference 56-60CM

minimum value of  Head circumference:53CM

Maximum value of Head circumference:61cm

Brim:about 7.5cm

the length of fabric :about 15.5CM  

The depth of the hat:about 11cm

NOTE:Size may have slight difference because of measure by hand

AS Picture