Bell Marvel Iron Man Bike Helmet Size Small

New Item not in Original Packaging

CIRCUMFERENCE     SMALL 50-54 CM (19.7-21.3 INCHES)
VENTILATION    
OPEN VENTILATION SYSTEM THROUGHOUT THE HELMET DESIGNED TO KEEP YOU CHILL.
CERTIFICATION    
COMPLIES WITH THE US CPSC SAFETY STANDARD FOR BICYCLE HELMET FOR PERSONS AGE 5 AND OLDER