Sizing Chart

Helmet Size Hat Size Circumference (cm.) Circumference (in.)
Small 5 3/4 - 7 56 - 56 18" - 22"
Medium 6 1/2 - 7 3/8 54 - 59 21.25" - 23.25"
Large 7 1/4 - 8 58 - 64 23" - 25.25"