The newest addition to Oakley's Flak collection, the Flak Beta Prizm Polarized Sunglasses boast an interchangeable lens design to add even more versatility to these sporty shades. From hitting the links to chillin' by the pool, they provide the precision optics, optimal coverage, and lightweight comfort for a wide range of outdoor activities. Interchangeable lenses allow you to swap out lens tints when conditions change mid-way through the day. In addition to eliminating glare and shielding your eyes from harsh UV rays, the Polarized lenses with Prizm technology also enhance colors and contrast for sharper, more vivid vision. Plutonite lenses are impact-resistant for durability, 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.