Hat size is based on the circumference of the head. In order to determine your proper hat size, you must take a measurement of your head.
Hat Size
Using a tape measure, measure your head about one-half inch above your eyebrows where your hat will rest.
Hat Size
Be certain that the tape measure is straight, not twisted. Alternatively, you can use piece of string to measure your head, and then measure the length of the string with a ruler.
Hat Size
If you are not certain about size, or are between sizes, buy the larger size.
Hat Size
Use the chart below to determine your hat size based on the measurement you take.