Advanced Polycarbonate Composite Shell Lightweight, superior fit and comfort using advanced CAD technology Aerodynamic shell with large eyeport for greater visibility Impact absorbing, multi-density EPS liner "ACS" Advanced Channeling Ventilation System ACS Advanced Channeling Ventilation System provides flow-through ventilation Multi-stage intake vents and exhaust vents allow full front to back fresh airflow that flushes heat and humidity out of the helmet SilverCool Interior Moisture-wicking and odor-free interior with advanced SilverCool antibacterial fabric Comfortable, removable and washable Rapidfire Shield Replacement System Quick, secure, tool-less shield removal/installation system Aerodynamic, flush-mounted shield fit for reduced turbulence SunShield Visor System One-touch integrated smoke-tinted SunShield deploys and retracts quickly and easily Adjustable to three positions HJ-09 Accusight Anti-Fog Shield Anti-fog, scratch-resistant hard coating Optically correct 3D design Rated to block 95% of harmful UV radiation Nylon Strap Retention System Neatly secures chin strap Built-In Communication with Speaker Pockets Standards: DOT-218