How to determinate your hat size?

In order to know your hat size, it is necessary to determine the circumference of your head and this is very simple as detailed below: take a measuring tape and firmly but not very tight, surround your head with the tape. Start from your forehead at about ¾” over your eyebrows and go around about 1/8 ”above your ears and the furthest part of your head, then check your size match in the size chart.