Helmet Sizing Guide

Helmet Size

Carefully measure around your head, above the ears. Take the measurement, in inches or centimetres and refer to the charts below for your helmet size.

DO NOT GUESS YOUR HELMET SIZE - Helmets must fit snugly and securely to protect you.

Child Helmet Sizes

Helmet Size	Inches	Centimeters
Kids Small	20 - 20.5	47 - 48
Kids Medium	20.8 - 21.25	49 - 50
Kids Large	21.6 - 22	51 - 52

Adult Helmet Sizes

Helmet Size	Inches	Centimeters
XX-Small	20 - 20.5	51 - 52
X-Small	20.8 - 21.25	53 - 54
Small	21.6 - 22	55 - 56
Medium	22.4 - 22.8	57 - 58
Large	23.25 - 23.6	59 - 60
X-Large	24 - 24.3	61 - 62
XX-Large	24.8 - 25.2	63 - 64
XXX-Large	25.25+	64 - 65

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Child Helmet Sizes

Adult Helmet Sizes