How to size
XTREME Youth
SIZE INCHES CM HAT SIZE
SMALL 18 1/2 - 18 3/4 47-48 5 3/4 - 5 7/8
MEDIUM 19 1/4 - 19 5/8 49-50 6 - 6 1/8
LARGE 20 1/8 - 20 1/2 51-52 6 1/4 - 6 3/8