While monocles usually only cover one eye, because, well, noses get in the way, Shred Optic figured out how to make this work. The Shred Optic Monocle Goggles has an easy-to-change spherical lens, which offers a wide swath of coverage and comes equipped with No Distortion technology, so your vision doesn't get warped. The technology has a small valve to equalize the pressure that causes lens shift at altitude changes, and a high-tech Poron filter keeps moisture out. To further keep you seeing clearly, the Monocle's lens block 100% of UVA, UVB and UVC rays and are anti-fog treated. The polyurethane frame is built to last, while the universal helmet compatible design and grip-on straps are added to make it as functional as possible. 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.