Serengeti Modugno 8408 Aviator Sunglasses, Non Polarized Drivers Grad Lens Composite Metal frame Photochromic Light-Weight Mineral Glass lens non-polarized Lens width: 66 Bridge: 16 millimeters Great for Flying or Driving Photochromic Lenses (light-adjusting) Drivers Gradient Lens, Non Polarized Great Eye Protection, Medium+ to Large Fit Shiny Dark Gunmetal Frame, Spring Hinges