Now a lot of friends to buy clothes, shoes, trousers and so on all aren’t aware of their size, So for its suitable hat size is more don't know.

The position of hat label is under the cap inner ring, use a tape to measure circumference under cap inner ring, the data is the hat size. 

Hat factory teach you how to measure the hat size and head circumference

Measure your head circumference size can use tape measure around the head (forehead and head at the back of the most prominent parts) in a round, keep the tape measure can rotate slightly, the head circumference is the head circumference size. 

Basic hat size of normal adult female is 56-58 cm, slightly bigger head  circumference is 58-60 cm. The 60 cm of head circumference is a large hat. 

The head circumference of general adult male is around 57 cm or 58 cm, big head circumference of some people about 59 cm to 61 cm. The head circumference is hat size. 

Hat size of Chinese is starting from 46cm. 46 cm is the smallest head circumference, head circumference of child hat is between 46-56 cm.

When you choose a hat, you should consider of the hat size that you can have a suitable hat.