Serengeti Sunglasses Aerial Shiny Gunmetal Drivers Drivers Gradient Lenses Titanium Frame and Bayonet Temples Photochromic, Gradient Trivex Lenses Fits medium to large faces Shiny Gunmetal Frames Lens Size: 58 x 48 x 63mm, dbl 19mm. Temple Length: 138mm. Base Curve: 6 Rx.