Prizm™ is a revolution in lens optics built on decades of color science research. Prizm™ lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility.Oakley lens tints are engineered to offer the best combination of light filtering, color balance and visual contrast. Visibility on the mountain can vary wildly, from socked-in blizzards to blindingly bright sunlight, and everything in between. Oakley offers a comprehensive array of performance lenses that match specially engineered base tints with unique Iridium® coatings, designed to precisely tune, contrast and balance light transmission.Features:- Light Transmission: 13%- Light Conditions: Changing Conditions- Contrast: Increased