Adult Full Face Mountain Bike Helmet For Downhill Racing. Stay Cool and Comfortable While Cycling with This Innovative Mountain Bike Helmet, Designed for Adults. It Features over 31 Strategically Placed Vents, Ensuring Maximum Airflow to Keep You Cool During Your Ride. Constructed with Lightweight Yet Durable EPS Material, This Helmet Offers Exceptional Protection Without Adding Unnecessary Weight, Making It Ideal for Long-term Use. This Helmet Comes Equipped with an EPP Chin Support for Added Safety and a Removable, Washable Comfort Liner for Easy Maintenance and Hygiene. Available in Various Stylish Colors, You Can Choose the One That Best Fits Your Style. The Helmet is Available in Two Sizes: M for Head Circumferences of 55-58cm and L for 59-61cm, Ensuring a Perfect Fit for Most Riders. Key Features: - Ventilation: Over 31 Vents for Optimal Airflow - Lightweight: Designed for Comfort Without Compromise - Size Options: M (55-58cm), L (59-61cm) - Protection: EPP Chin Support for Added Safety - Maintenance: Removable and Washable Comfort Liner - Material: Durable PC, EPS - Color Options: Camouflage Orange, Camouflage Blue, Camouflage Green, Black, Black & White, Black & Red, Black & Grey, Camouflage Grey - Weight: 710g (25oz) Embrace a More Comfortable and Safe Cycling Experience with This Feature-rich Helmet..