Special photochromic lenses lenses with reading area. Designed for people with far sighted vision. Modern style sport glasses with lightweight frame. Polycarbonate 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. Lens shape gives protection against sunlight, dust and wind. Block system prevents the temple tips damage the lenses while folded inwards. Hi-impact PC frame with adjustable rubber nose piece. Comes with a pouch.