Prizm is a revolutionary lens technology that fine-tunes vision for specific sports and environments. See what you've been missing Small/youth-sized cylindrical lens Plutonite lens material provides 100% protection against UVA/UVB/UVC & harmful Blue light up to 400Nm Meets impact requirements based on ANSI Z87.1 and EN 1938: 2010 standards 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.