Sport glasses with interchangeable photochromic lenses. These lenses have a light transmission of 85-17%. The brighter the light, the darker the lens automatically becomes. One lens provides you with category 1, 2 and 3 levels of eye protection. Full round lens shape gives optimal protection against sunlight, dust and wind. 100% UV protection. High-end Grilamid frame with adjustable rubber nose piece. Includes carrying case.