Features:*High Quality Material: The product is made of high quality material, durable and wear-resistant, not easy to break, can use for a long time.*Breathable: The helmets is designed with breathable vent, providing superior comfort for your cycling trips.*Adjustables: The strap is adjustables, can adjust size according to your need.*Durable: Adult helmets is durable, can provides excellent shock absorption upon impact, offering tremendous protection.*Wide 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 measurementLining: EPS-buffer layerSize: One Size(54cm-61cm)