EIRT (Energy Impact Resistant Thermoplastic) aerodynamic helmet shell. 2 different helmet shell sizes ensure a comfortable and snug fit. Removable and washable internal lining, antibacterial and neutralizes unpleasant odors. Nose deflector. Ventilation system for maximum cooling and optimal concentration. Quick release visor mechanism for quick visor changes without tools. The visor offers 100% UV protection, has an anti-scratch coating and is Pinlock® ready Extremely wide field of view. Microlock chin strap closure POLYCARBONATE