Adult Medium. 22.5 inches.
Fleecy soft celery green lining.
You will never want to take off a hat that fits you perfectly. If you don’t have a flexible tape measure, fret, not. Find a string, ribbon, shoelace—wrap it around hear, be sure to go right over the top of the eyebrows, catch the top of the ears (If they will be in hat), and don’t pull tight. Then use a straight ruler or tape measure and see how long it is.