The Oakley Flight Jacket Replacement Lens makes use of Oakley’s patented High Definition Optics® (HDO®), which eliminates distortion to give you clearer, sharper, and more accurate vision.Customize the look of your Oakley Flight Jacket eyewear and get the best optical performance for where you use it most. All replacement lenses feature the unbeatable clarity, impact resistance and 100% UV filtering of Oakley\'s HIGH DEFINITION OPTICS™ (HDO™).Oakley Flight Jacket Replacement Lens FeaturesLight Transmission: 93%Light Conditions: Low LightContrast: NeutralBase Lens Colour: Clear