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 a new single-layer lens design which reduces distortion, refraction, and reflection, and increases field of view by 20% in comparison to the regular Line Miner. Partner industry-leading optics with a fast Switchlock Technology lens changing system, and you’re ready for anything that comes your way. Every Line Miner Pro comes with a 2-lens bundle for easy lens change so you can quickly adapt to changing light conditions, keeping you on the mountain longer.