Nolan IRID® LC X-804 VISORAdapt your vision in the blink of an eye! The IRID LC X804 visor for the Nolan X 804 RS helmet automatically becomes lighter or darker depending on the light . Instant photochromic visor for Nolan X 804 RS helmets Key Features: IRID LC photochromic technology automatically transitions lighter or darker based on UV light exposure Instant photochromic response with clear to dark transition in less than 1 second Iridium reflective coating with dynamic