Injection-Molded Polycarbonate Composite Shell Construction I-beam chin-bar sculpture. Unique CAD generated shell sculpture for improved fit and increased helmet stability. Flow-Through "ACVS" Advanced Channeling Ventilation System. 2 forehead intake vents and a large integrated rear exhaust spoiler are combined with sculptured air channels to allow the entire helmet to act as a full venturi system. Fresh air is channeled at high velocity through this system which draws heat and humidity up and out of the shell through 4 internal exhaust channels. Removable/Washable Bioceramic Nylex Interior Liner. Easy to remove liner and cheek pads for cleaning and air drying. Bioceramic Nylex liner and cheek pads feature ceramic cell technology to reduce odor-causing bacterial build-up. Sculptured wrap-around neck roll reduces wind noise. Padded chin strap design. Aerodynamic, Maximum Visibility Visor Design. Aerodynamic visor design also acts as a "ram air", forcing fresh air into the forward intake vents. Maximum visibility, 3-screw visor system, featuring machined aluminum visor side screws, allow for extra secure rider adjustability. Large Eye Port Design. Large eye port opening offers excellent goggle fit and rider visibility. Integrated roost guard (included, users option). Integrated injection molded no-slip goggle grip design. Nylon Strap-Retention Snap. Neatly secures access chin strap. Soft Helmet Storage Bag Included. DOT-218 APPROVED.