Call for availability of other colours.
In the lightest state the lens has a light transmission of 85%, In full sunshine the light transmission is only 17%. BBB photochromic lenses change from light brown to dark gray, in only 8 seconds.
Like all other BBB lenses, photoshromic lenses are made of shatter-proof polycarbonate material and give a 100% protection from harmful UV rays. » GRILAMID NYLON MATERIALHigh-tech material that combines durability, flexibility and lightweight. Comfortable. » FACE COMFORT - Smart, comfort-centric design which includes: Flexible temples with high-grade anti-slip rubber inserts for a secure and comfortable fit for any head shape. Metal nose-piece gives a no-slip fit under extreme conditions. » Comes with a high-quality scratch-free bag that doubles as a lens wipe.