About This Size X-Small: Suggested for infant/toddler Size Small: Suggested for kid 2 sizes available: For kids of different ages, suitable for infants, toddlers, little children, boys, girls. Please choose the helmet size according to the head circumference Dual Certificate: Complies with U.S. Standards of CPSC 1203 and ASTM F1447. Complies with U.S. Consumer Product Safety Commission Safety Standard for Bicycle Helmets Sturdy and Multi-sport: Outer PC shell resists impact and high-quality inner EPS foam provides shock-absorbing. Designed for various outdoor sports such as bike, kick scooter, skateboard, roller/inline skate and so on Ultra-lightweight and Comfortable: 14 top and side vents keep kids cool even in hot weather. Additionally, the bug mesh net keeps bugs out of the helmet while riding, but allows fresh air in for well-ventilation Fully Adjustable：Adjustable from 360-degree for a custom fit, provided by the crank adjustment dial, 2 sets of pads with different thicknesses, and length-adjustable chin straps Overview Brand : OUWOER Color : Black Age Range (Description) : Age 3-8 Years Kid Size : Small: 20.0"-21.3" / 51-54 cm Special Feature : Adjustable, Lightweight, Ventilation
