- Modular design allows for full-face or open-face riding. - FRP Composite shell exceeds DOT standards. - Comfortable, padded interior and Styrene liner. - Adjustable ventilation on chin and forehead with exhaust in rear. - Comfortable multi density padding and Styrene lining. - No-tool, quick release shield system. - Scratch resistant, optically correct polycarbonate shield. - Face shield down with full face coverage and protection. - Visor up for airflow while maintaining good facial coverage. - Facemask up allows for better ventilation and eyesight. Z1R Helmet Size Chart: