Features: x Material: The product is made of material, durable and wear-resistant, not easy to break, can use for a long time.xBreathable: The helmets is designed with breathable vent, providing superior comfort for your cycling trips.xAdjustables: The strap is adjustables, can adjust size according to your need.xDurable: Adult helmets is durable, can provides excellent shock absorption upon impact, offering tremendous protection. xWide Application: This helmets is suitable for both males and ladies and is ideal for a wide range of activities, including cycling, e-bike, scootering, electric biking, longboarding, etc.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurement Description:Lining: EPS-buffer layerSize: One Size54cm-61cm Package List:1 x Helmets Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.