Serengeti Sunglasses Rivoli 7916 Shiny Matte Black Mineral Polarized 555nm Green Photochromic Brown Vintage Gradient Black Kate Spade Sunglasses Izabella G S 807 SM HEL TRANSIT MIPS 09K 55#HH Kate Spade Sunglasses Izabella G S 807 WJ Black Grey Gradient Polarized feature a distinctive butterfy frame crafted from premium acetate 0 Polarized Drivers Brown is a lightweight strong frame made from Grilamid and with Polar PhD lenses made from impact resistant Trivex 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