This is IMPORTANT! We size our fezzes differently than traditional brimmed hats. The easiest way to measure your head is to wrap a measuring tape around your noggin just above your ears - with TWO fingers under the tape. (pointing up/down) If you don't have a fabric measuring tape simply wrap a ribbon, a bit of string, or a cat5 cable around your head, mark where it overlaps and then measure the distance. Our fezzes are made in half-inch increments so you should be able to find one pretty close. Be careful not to pull the cord too tight. While the fezzes may stretch a bit you don't want to cut off the flow of blood to your scalp... unless you are in to that sort of thing.
Use this just as a 'guide' - it's not etched in stone...