Notion Size Chart

NOTION SIZE CHART

 SIZE (US/In.) S M L
 Head Circumference 20.10''-21.65'' IN 21.65''-23.25'' IN 23.25''-24.80'' IN

 SIZE (EU/Cm.) S M L
 Head Circumference 51-55 CM 55-59 CM 59-63 CM

MEASUREMENT GUIDE

Helmet sizes are based on the circumference of your head. To determine the correct size, wrap a measuring tape around your head. You should measure from the mid of the forehead above the ears to the back of the head.