Serengeti Sunglasses Rivoli 7916 Shiny Matte Black Mineral Polarized 555nm Green Photochromic Black Ray Ban Sunglasses Round Metal 3447 KC 2839 28Z 52#HH Ray Ban Sunglasses Round Metal 3447 029 Matt Gunmetal Green 50mm are a rock and roll edged shades taking their inspiration from John Lennon and many other rock stars who have worn this shape since Carrera Glasses Frames 213 003 Matte Black Men have a plastic frame with a rectangular shape and are designed for men Serengeti Sunglasses Rivoli 7916 Shiny Matte Black Mineral Polarized 555nm Green Photochromic are from the Serengeti Flex series and they will adjust to the shape of your head for a supremely comfortable snug fit The lenses are of course Serengeti's unparalleled photochromic lenses which will lighten darken for optical light transmission in any condition and also reduce eye strain and fatigue