Advanced Dual Sports: It would be flexible for riders ventilation and riding during the day and the night. Advanced Aerodynamic and Stylish Designs: significantly reduce wind resistance force and increase the stability;Heavily cushioned and comfortable interior: improve safety to protect the head and give a more comfortable rider experience;Aerodynamic ABS Shell and Multi-Density EPS Materials provide the full protection from the impact and meet & exceed DOT standards;EIGHT Ventilation Opening System: Four front and Two top, Two back vents 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. Aerodynamic Flow Design 8 Ventilation Openings Shield Options Helmet Size Chart Motorcycle Bluetooth Unit is included when purchased as bundle (buying option: Z bluetooth+ helmet color) Motorcycle Bluetooth Installation Instruction HF801 HGXP14B HF802 HGXP15 Carbon Fiber HF803 H637 Buying Options Add to Cart Add to Cart Buying Options Add to Cart Add to Cart Customer Reviews 4.6 out of 5 stars 57 4.6 out of 5 stars 925 4.5 out of 5 stars 4,139 4.1 out of 5 stars 4 4.7 out of 5 stars 6 4.6 out of 5 stars 130 Price — no data $64.95$64.95 $79.95$79.95 — no data $84.95$84.95 $89.95$89.95 Material ABS ABS ABS Carbon Fiber ABS ABS Function Motocross Motocross Dual Sports Dual Lens Motocross Motocross Motocross Color Options Black, Blue, Green, Orange, Pink, Red, White Black, Blue, Green, Orange, Pink, Red, White Black, Blue, Green, Orange, Pink, Red, White Carbon Fiber Black Black, Blue, Green, Orange, Pink, Red, Yellow Black, Blue, Green, Orange, Pink, Red, Yellow Size Adult S-XXL Adult XS-XXL Adult S-XXL Adult XS-XXL Adult S-XXL Adult S-XXL