To measure the hat size, wrap a tape measure around the head just above the ears. The tape should fit comfortably – not too tight. Round up to the nearest size.
If you have no tape measure, you can measure with a string, which you then measure with a ruler.
6 years and older
The baseball cap is probably the type of cap that people use the most today. It began to be used in the early 20th century to protect baseball players from the sun and has since become a very strong popular cultural symbol. It is made up of several sewn-together pieces of fabric, but has a tighter fit and a larger screen than, for example, the Newsboy cap.