The Troy Lee Designs D3 Fiberlite Full Face MTB Helmet features many of the racing-derived features found on its top-shelf D3 Carbon and Composite siblings. The D3 Fiberlite sources a lightweight fibreglass shell with wind-tunnel proven aerodynamics and an efficient ventilation system. The Troy Lee Designs D3 Fiberlite Full Face MTB Helmet also delivers a comfy, secure fit from its 3D cheek pads, as well as TLD\'s signature styling and attention-grabbing graphics. Thanks to the D3 Fiberlite, the most decorated helmet in professional racing is now available for riders who crave factory performance.Troy Lee Designs D3 Fiberlite Full Face MTB Helmet FeaturesLightweight Fiberglass shell construction with an overall helmet weight of 1225 grams20 high-flow intake and exhaust ports for maximum ventilationAdded EPS and new head-form shape for improved impact performanceQuick-release cheek pads for emergency helmet removalExceeds bicycle certifications: ASTM F1952-15, ASTM F2032-15Not intended for use with motorized vehicles