iXS Mountain Bike Helmet Size Chart

OPEN FACE HELMETS + TRIGGER FF (with headring adjustment)

XSS SM ML XLW wide
49-54cm 54-58cm 58-62cm 58-62cm

 

FULL FACE HELMETS (no headring)

XS SM ML LXL
49-54cm 53-56cm 57-59cm 60-62cm