The HJC RPHA 1 Motorcycle Helmet was designed and developed after several years of focused efforts and crucial feedback from top world class athletes in MotoGP.Premium Integrated Matrix / P.I.M Plus: Reinforcement materials, including Carbon and Carbon-Glass Hybrid fabric, provide enhanced Shock-Resistant performance, more comfort, and lightness of the helmetAerodynamic shell design for racing performanceACS Advanced Channelling Ventilation System: 5 intakes & 4 exhausts; Full front-to-back airflow flushes heat and humidity up and outImproved ventilation system reduces visor fogging and increases airflowIt comes standard with the PinlockEnhanced Visor dual lock system for high speed racing conditionsAll-New EASY Attachment System allows simple and secure tool-less Visor replacementSilver Cool provide enhanced moisture wicking and Quick dry, Cool Comfort & Cooling effect for Superior stabilityCrown and Cheek pads: Removable and washableCheek pads: interchangeable throughout all sizesEm