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Trail Size Chart

 Size INCHES CENTIMETERS
XS 18.8" - 21.1" 48 - 54 cm
S 21.2" - 22" 54 - 56 cm
M 22" to 22.8" 56 - 58 cm
L 22.8" - 23.6" 58 - 60 cm
XL 23.6" - 24.4" 60 - 62 cm
2XL 24.4" - 25.2" 62 - 64 cm

 

Trail helmet sizing guide showing where to measure around the head and choose the next size up

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