Includes Microfiber Goggle Bag Light Transmission: 20% Light Conditions: Bright Light Contrast: Increased Base Lens Color: PRIZM_BRIGHT 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. Fits Line Miner L, Line Miner XL and the original Line Miner which are all the same size. Oakley just changed the name. The Line Miner comes in two sizes. This is the larger version. 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.