Oakley Twoface Sunglasses double up on comfort and style while bringing you visionary technology worthy of the metal icons. Frames feature precision-formed aluminum lower orbitals with O Matter uppers. The lenses are made of Plutonite to filter out every eye-chafing ray of UV. Optical precision and impact resistance meet or exceed Z80.3 optical and basic impact standards. The Three-Point Fit holds lenses in precise alignment so XYZ Optics can maintain clarity all the way to the lens periphery where conventional lenses distort vision. Twoface is made to fit medium-sized faces. Made in USA. About Oakley lenses : Prizm Designed to deliver ultra-precise color tuning for any environment. By fine-tuning individual wavelengths of color to make everything vivid and vibrant, Prizm sharpens visual acuity to reveal nuances that would otherwise be missed by the naked eye. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Polarized.