HG362 Motorcycle Helmet Specs Modular Dual Visor Functions Vent Opennings and Switches Inner UV Proof Lens Helmet Size Chart Advanced Modular & Dual Visor Designs: It would be flexible for riders ventilation and riding during the day and the night. Both outer clear shields and inner smoked visor are easy to remove and install;Aerodynamic ABS Shell and Multi-Density EPS Materials provide the full protection from the impact and meet & exceed DOT standards;Six Ventilation Opening System: two front and two top adjustable vent switches give riders the perfect adjustment for air intake and exhaust; Removable and Washable Liner and Pads keep the helmet inside clean and odor free.Quick Release Buckle easily stay helmet secured and release conveniently. HG339 HB89 Modular901 HB-B1 Carbon Fiber HB-B99 Carbon Fiber HG335 Carbon Fiber Material ABS ABS ABS Carbon Fiber Carbon Fiber Carbon Fiber Function Modular Dual Lens Modular Dual Lens Modular Dual Lens Modular Dual Lens Full Face Full Face Weight 3.9 3.8 3.6 3.7 3.4 3.0 Rating DOT DOT DOT DOT Snell DOT Shield Model: HG362 Leather Gloves Martian: BT-S2 Bluetooth: T-MAX Bluetooth: T-MAX-LS Remote Bluetooth: R1-plus with Camera Accessory Shield Glove Bluetooth Bluetooth Bluetooth Bluetooth Bluetooth Installation Instruction