The Lazer Kids' Gekko Mountain Bike Helmet is user friendly and offers great protection for the little shredders in your life. Designed especially for kids, its thoughtful features include an automatic fit adjustment, anti-pinch chin buckle, and an optional integrated rear light. The clever AutoFit®Fit System will automatically adjust to fit your kid's head with no pressure points or hot spots. The 'one size fits all' means that the helmet will fit them for longer as they grow. The sides and rear of the helmet extend lower to help protect them from unexpected bumps. Twelve vents allow for plenty of airflow to avoid overheating. The Gekko is certified by the Consumer Products Safety Commission (CPSC) for children ages 5 and up.