Transitions® Photochromic technology allows visors to automatically and seamlessly change from clear to dark in sunlight. The process works when photochromic dyes embedded into the lens or shield react to UV light, changing levels of darkness with the sun. When UV light is removed, a chemical reaction driven by ambient heat reconverts the activated photochromic molecules to their original, clear form and the lens fades. The CWR-1 Photochromic Pinlock face shield fits SHOEI's RF-1200, RF-SR, RF-SR2 and X-14 helmets. Distortion-free view throughout the entire range. 100% UV protection. Fades to 50% transmission in two minutes. Anti-reflective coating. Pinlock® ready. Scratch-resistant coating. Innovative new ribs on the top and bottom edge of the shield to improve rigidity and eliminate bending from wind pressure and during the opening and closing process.