• Universal size: 18.8-22 inch (48-56 cm). For kids of different ages, suitable for children, youth, boys, girls of age 5-14 years old
• 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 kick scooter, biking, skateboarding, roller/inline skating and so on
• Ultra-lightweight and Comfortable: The helmet is made of lightweight material; Package includes 1 extra set of inner pads for washing and using interchangeably; 13 vents keep kids cool even in hot weather
• Fully AdjustableAdjustable from 360-degree for a custom fit, provided by the crank adjustment dial, length-adjustable chin straps and adjustment slider
• 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 for Persons Age 5 and Older