Krios Pro Charger Helmet. Carved from the Krios DOT / ECE chassis, the Krios Pro is the first ADV-specific DOT helmet in North America to integrate Koroyd® materials and construction. The Krios Pro helmet elevates standards in comfort, performance and airflow while leaving traditional compromises behind. The ultimate ADV experience is made possible by high-performance carbon fiber construction, four-ride-mode versatility, aerodynamic superiority and unrivaled acoustical and contact comfort. Full carbon fiber hand-laid shell. Optimized shell resin distribution for weight reduction. Koroyd® energy absorbing materials / construction. Koroyd® structures crush homogeneously for better impact absorption. Fully adjustable chin / forehead vents. Clear anti-scratch polycarbonate shield. Transitions® photochromic shield included. Pinlock® anti-fog insert lens included.