The Nitro N-PSI Pump Motorcycle Helmet features a custom designed Aerodynamic MPT (Multi Poly Tech) constructed shell, ACU Gold standard approval, PSi (Pressure Secured Interior) for superior custom fit, adjustable ventilation at chin, visor and face, dual air filtration system at brow, dual rear exhaust vents, injection moulded quick release, Pinlock prepared anti scratch 3D visor, ultra comfort fit removable and washable liner system, pre moulded removable nose guard/breath deflector, micrometric buckle for ultimate adjustability and perfect tension, anatomic luxury fitted cheek pads and comfort lining, DVS (Dual Visor System) and aerodynamic base trim stabilising and air dam system.