Anon M2 Goggle. The Anon M2 goggle features Magna-Tech® Quick Lens Change Technology, using 16 rare earth magnets to make lens changes easier than ever. Spherical Lens Technology mimics the curvature of the human eye for superior optics, while SONAR Lenses by ZEISS enhance contrast for the best possible definition and terrain recognition. Magnetic Facemask Integration (MFI®) seals your Anon MFI® facemask to the goggle in a snap. The M2 goggle is Over The Glass (OTG) compatible for wearing with eyeglasses. Includes spare Graybird lens, compression-molded storage case, and microfiber goggle bag for storage and cleaning the lens.