The TLD MTB Helmet D3 Fiberlite Mono by TROY LEE DESIGNS is a cutting-edge mountain biking helmet designed for excellent safety and comfort. It features a lightweight fiberglass shell construction, weighing only 1,225 grams, making it suitable for long rides without adding unnecessary weight. The helmet includes a superior ventilation system with 20 high-flow intake ports and 6 exhaust ports, ensuring optimal airflow to keep the rider cool and comfortable. Custom-fit is guaranteed by specially contoured 3D cheek pads that provide a snug and secure fit. The internal lining of the helmet is removable and washable, making maintenance effortless. This helmet exceeds multiple safety certifications, including CPSC 1203, CE EN 1078: 2002 + A1: 2012, ASTM F1952-15, ASTM F2032-15, and ASTM F2040-11, offering peace of mind for any mountain biker.