IRONMAN Endura Bike Helmet 24 Vents, Single In Mold, Helmet Weight: 8.7oz (246g) Dial Retention System, Moisture Guard Comfort Pad Set, Full Padded Head Ring for Custom Fit Patented Reflectek Rear Panel is Reflective Up To 200 Yards Away This Helmet Complies with the U.S. CPSC Safety Standard for Persons Age 5 and Older. Read the Owners Manual and Follow All Warnings and Instructions Before Using Helmet