Good Helmet: Formed Of High-Density Eps Foam And Tough Pc Shell, The Adult Bicycle Helmet Is Tightly Combined Without Any Gaps, So It Can Effectively Withstand The Crash Pressure. The Durable And Solid Material Can Minimize Head Injuries In The Event Of A Collision. Exceptional Airflow: The Mtb Helmet Adopts 21 Vents For Better Ventilation, Allowing Air To Pass Through The Helmet. A Large Wind Tunnel Ventilation System Can Effectively Reduce The Wind Force. It Is Very Useful For Increasing The Speed Of The Bike And Keeping A Cool Head. Luminous Tail Light: The Usb Led Light Is Located On The Back Of The Mtb Helmet. The Super Bright Led Light Can Help People Behind You Recognize Your Direction When Cycling At Night. Led Rear Light With 3 Lighting Modes - Steady, Slow Flashing And Fast Flashing. Removable Visor: This Men'S Cycling Helmet Is Equipped With A Solar Visor And A Gray Goggle. The Visor And Goggle Are Detachable, Allowing 5 Different Wearing Styles To Meet Your Different Needs. Perfect Gift: Each Helmet Comes With A Usb Charging Cable. Modern Color Design And Independent Packaging Make It An Ideal Gift For Your Family And Friends.