Line Miner Pro boasts Oakley's sharpest optics and widest field of view in one package, giving you the best visual advantage on the mountain. They achieved this through Their new single-layer lens design which reduces distortion, refraction, and reflection, and increases field of view by 20% in comparison to their Line Miner. Partner their industry-leading optics with their fast Switchlock Technology lens changing system, and you're ready for anything that comes your way.