Customize The Look Of Your Frogskins™ Lite Eyewear And Get The Best Optical Performance For Where You Use It Most. Prizm™ Replacement Lenses Provide Unprecedented Control Of Light Transmission Resulting In Colors Precisely Tuned To Maximize Contrast And Enhance Visibility With The Impact Resistance And 100% Uv Filtering Of Oakley’S High Definition Optics™ (Hdo™). Important Note: Replacement Lenses May Not Be Returned If They Have Been Mounted Or Scratched. Asian Fit Lenses Cannot Be Installed In Standard-Size Eyewear Frames.Specifications: - Light Transmission: 14%- Light Conditions: Bright Light- Contrast: Neutral