Buckle up and hit the trail. The Smith Pilot mountain bike helmet is the total package for trail riding. It combines a durable, lightweight build with elevated safety tech and on-the-fly adjustability. A MipsA(R) liner system helps reduce angle impact forces in a crash, and fixed vents provide the airflow you need to stay comfortable through climbs and descents. An easy-to-use dial lets you fine-tune the fit, and side channels let you secure your shades between laps. Product Details Protection Lightweight in-mold construction MipsA(R) Brain Protection System reduces rotational forces caused by angled impacts to the head Complies with U.S. CPSC Safety Standard for bicycle helmets for persons Age 5 and older as well as CE EN 1078, AS/NZ2063 Fit / Integration Adjustable dial fit system for a customized fit Designed for ultimate integration with Smith performance eyewear for maximum comfort, venting and storage convenience Features 13 fixed vents for consistent airflow Performance comfort lining Lightweight, low-bulk single layer webbing Fixed visor Weight (Size M, MipsA(R)): 13 oz / 370 g