Serengeti Verona Sunglasses Base Curve: 8 Rx; Temple Length: 125 mm/Spring Hinges; Lens Size: 60 x 33 x 63.2 mm, DBL 14mm The Sport Classic Frame give style and confidence. With its versatile brown lens, the Drivers Polarized lens peforms under cloudy and harsh light conditions. Plus, you get the added protection of the Serengeti polarizing technology. 18% transmittance lightened lens/10% transmittance darkened lens.