Optically precise performance featuring magnetic lens and facemask simplicity, and the superior clarity of SONAR by ZEISS. MFI® magnetic facemask included. The men’s Anon M2 goggle features Magna-Tech® Quick Lens Change Technology, using 16 powerful neodymium magnets to make lens changes easier than ever. Magnetic Facemask Integration (MFI®) seals the included Anon MFI facemask to the goggle in a snap. Spherical Lens Technology mimics the curvature of the human eye for superior optics, while SONAR lens technology by ZEISS enhances contrast for the best possible definition and terrain recognition. Full perimeter channel venting ensures maximum airflow for clear, fog-free vision in all conditions. Includes MFI facemask, spare lens for cloudy conditions, and microfiber goggle bag for storage and cleaning the lenses.Features:- Over The Glasses (OTG) Compatible- MFI® Technology (Magnetic Facemask Integration)Lens:- Lens Shape: Anon Spherical Lens Technology- Magna-Tech® Quick Lens Change Technology- SONAR Lens Technology Featuring ZeissFrame:- Wall-to-Wall Vision- Flush Mount Outrigger- Triple Layer Face Foam- Lightweight Thermoplastic Polyurethane (TPU) Frame- Over The Glasses Compatible: Yes- Magnetic Facemask Integration: YesTechnical Features:- Outlast® Fog Management Face Fleece- ICT (Integral Clarity Technology)Strap:- No-Slip Silicone StrapVentilation:- Full Perimeter Channel VentingIncludes:- Includes Spare Lens- Includes MFI Facemask- Includes Microfiber Goggle BagSpecifications:- Frame Height: 96mm