evo.com | Troy Lee Designs Helmets > Keep that noggin safe with the dialed looks and comfort of the Troy Lee Designs A1 Drone Bike Helmet. Its lightweight polycarbonate shell houses an EPS impact liner that secures to your cranium with a custom fit rear cage for full protection even at mach speeds. 8 Pressurizing Intake Passages Certifications CPSC 1203, CE EN 1078-212, AS/NZ 2063-2008 Polycarbonate Shell with Aerospace Filament Reinforced EPS Impact Liner Anodized Aluminum Hardware Customized Fit 3 position adjustable stabilizer baskets. | Troy Lee Designs A1 Drone Bike Helmet 2019