AGV K6 / K6 S PrecisionTone Pinlock Lens Insert The Pinlock PrecisionTone anti-fog lenses change color in varying weather conditions by seamlessly adapting to the light intensity. When exposed to sunlight, the photochromic molecules in the lenses activate and absorb visible light, making the lens appear darker. In low light conditions, the lens remains clear for optimal visibility. Fits AGV K6 & K6 S Helmets. Features: Lens darkens when exposed to sunlight & lightens in low light conditions MaxVision and anti-fog technology Absorbs moisture on the inside and offers you continuous clear visibility Air-tight pocket ensures that the difference in temperature becomes significantly lowered Compatible with AGV K6 / K6 S pinlock-ready face shields