Sizing Chart

Helmet Size Hat Size Circumference (in.) Circumference (cm.)
X-Small 6 1/8 - 6 3/4 19.2" - 21.2" 49 - 54
Small 6 1/2 - 7 1/8 20.4" - 22.4" 52 - 57
Medium 6 7/8 - 7 1/2 21.6" - 23.6" 55 - 60
Large 7 1/4 - 7 7/8 22.8" - 24.8" 58 - 63
X-Large 7 1/2 - 8 1/8 23.6" - 25.6" 60 - 65