The Anon Men's M2 Snow Goggles With Gold Chrome Lens 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 Outlast® Fog Management Face Fleece eliminates moisture before it clouds up the lens. Magnetic Facemask Integration (MFI) seals your anon. MFI facemask to the goggle in a snap. Includes MFI Facemask (select colorways only), spare Graybird lens, compression-molded storage case, and microfiber goggle bag for storage and cleaning the lens.