Trek Bontrager Helmets Size Guide

Trek Bontrager Helmets Size Guide

Trek Kids Helmets Toddler Child Youth
Size 46–50cm 48–52cm 50–55cm
Trek Adult Helmets XS S S/M M M/L L XL
Size 50–55cm 51–57cm 51–58cm 54–60cm 55–61cm 58–63cm 60–66cm