Oakley won't stop making lighter and thinner sunglasses, and the Unstoppable Prizm Sunglasses are the latest lightest for women. Sunnies this streamlined deserve the best optics, so Oakley hooked them up with Prizm technology to make everything look vivid and vibrant. The lenses are impact-resistant for long-lasting durability. 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.