Serengeti Sunglasses Rivoli 7916 Shiny Matte Black Mineral Polarized 555nm Green Photochromic Spy These goggles offer a medium PPC PLD 9004S DL5 Y2#HH These goggles offer a medium fit for those too small for an adult frame but larger than a kids Crafted with precision and flair 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