BBB Photocromic glasses Impress Black mat

SpecificationsSport glasses with interchangeable photochromic lenses.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.