SHOEI is a Japanese company that produces a popular line of motorsport helmets. Has been dedicated to the development of superior helmet technology and all helmet parts. 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. Anti-reflective Coating. Pinlock ready. Manufactured by Transitions, the leading manufacturer of photochromatic lenses world-wide.