If you're only going to have one pair of sunglasses, better make it the Oakley Mainlink Prizm Sunglasses. Sporting a timeless shape, the Prizms offer style that works from the city to trail, and they're equipped with vision-boosting Prizm technology to help you enjoy any environment in all its glory. Prizm technology enhances colors and contrast for a sharper, brighter view of the world when you're tearing up trails or hanging out by the beach. Impact-resistant Plutonite lenses block harmful UV light, and the lightweight O Matter frame is subtly flexible for enhanced comfort. Oakley's patented Three-Point Fit eliminates painful pressure points while holding the lenses in precise optical alignment for undistorted vision. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.