Anon MIG Sonar Goggle Lens, Sonar Night: Sports & Outdoors. Anon MIG Sonar Goggle Lens, Sonar Night: Sports & Outdoors. 100% Other Fibers . Imported . Spherical lens construction combines de-centered technology with lens curvature that mimics the curvature of the human eye for superior optics . Anon Integral Clarity Technology anti-fog treatment delivers crystal clear vision in any condition . All Anon lenses offer 100% UV protection and exceed ANSI Z87.1 impact test standards . Optics offers an extensive selection of spare goggle lenses in various tints for adapting the men's MIG Goggle to any weather condition. All lenses feature Integral Clarity Technology anti-fog treatment for crystal clear vision in any condition. . . .