Sizing Chart

Helmet Size Hat Size Circumference (in.) Circumference (cm.)
X-Small 6 1/4 - 6 3/4 19.5" - 21.5" 50 - 54
Small 6 1/2 - 7 20.5" - 22" 52 - 56
Medium 6 7/8 - 7 3/8 21.5" - 23.5" 55 - 59
Large 7 1/4 - 7 7/8 23" - 25" 58 - 63