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 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 (Patent Pending #11/335,855) deploys and retracts quickly and easily adjustable to three positions. HJ-09 Accusight Anti-Fog Face 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. Speaker Pockets.