Our company adheres to the tenet of quality first, service first, and trend-setting, and will provide , technical, fashionable, and cool products and services for global motorcycle lovers, and share the motorcycle culture and motorcycle travel spirit with the world!Motocross helmet features:DOT/ECE 22-05 approvedInjection type ABS shell, lightweight and impact resistantLightweight and lightweight design reduces wind noiseThe comfortable 3D soft padded lining is made of breathable technical fabric, hypoallergenic and completely removable and washable.The air intake and exhaust vents ensure adequate ventilation to keep you coolQuick release buckle ensures your head is securely fixedspecification:Shell material: ABSSize: Size: S=(54~55cm), M=(56~57cm), L=(57~58cm), XL=(58~59cm) XXL=(60~61cm)note:1. Please allow 1-3cm as the error range of manual measurement.2. Due to the difference between the monitor and the indicator light, the color display will be different, thank you for your understanding.