evo.com | Troy Lee Designs Bike Helmets > One of the highest rated, most winning and most loved lids you could put on on your head. The Troy Lee Designs D3 Fiberlite Bike Helmet packs an all star combination with its Coolmax(TM), dual density liner and custom cheek pads the D3 stays where you want it under full send. Sporting 20 wind tunnel tested ventilation ports you'll be cool and composed mid-way and late into your run. Thanks to a dialed lightweight construction the Troy Lee Designs D3 Fiberlite Bike Helmet brings comfort, safety and performance to your ride. Removable, Washable Padded Liner with Coolmax(TM) and Dri-Lex(TM) Moisture Wicking Full Incremental Sizing for Greater Range of Fitment Lightweight Fiberglass Shell Revolutionary Injection-Molded Air Intake System Digital Wind Tunnel-Tested Aerodynamic Shell Design | Troy Lee Designs D3 Fiberlite Bike Helmet - Large in Black