XS Helmet Sizing

 XS / S

 20 1/8″ – 22 3/8″, cm: 51cm – 56cm

M / L

 20 7/8″ – 23 1/8″, cm: 53cm – 58cm

 XL

 23 1/8″ – 23 7/8″, cm: 58cm – 61cm

 

Complies with U.S. CPSC Safety Standard for bicycle helmets for persons age 5 and older, CE Complies with the EN1078:2012+A1:2012 Standard for cycling, skateboarding or roller skating.