Serengeti Sunglasses Rivoli 7916 Shiny Matte Black Mineral Polarized 555nm Green Photochromic Miu Miu it’s a subtle nod to BV RX 4149KB 5412 54#ET it’s a subtle nod to retro style with a contemporary twist The iconic T bar metal accent wraps around the temples for brand authenticity 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