Featuring Oakley's revolutionary Prizm lens technology, the Twoface Prizm Sunglasses a are perfect for a day on the river or lake, a long road trip, or any circumstance that puts a lot of harsh glare on your face. Prizm lens technology cuts through the noise of visual light, resulting in clear and crisp, high-contrast visuals that enhance clarity, depth perception, and contrast. The Plutonite lenses filter out 100% of all UVA, UVB, and UVC light so you can be out in the sun all day without harming your eyes. Plus, the O-Matter frame is stress resistant to take the beating you're likely to serve up rafting whitewater, mountain biking, or ripping the corduroy on a bluebird spring day. 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.