The women's Anon WM1 Goggle features Magna-Tech Quick Lens Change Technology, which uses 14 powerful neodymium magnets to make lens changes easier than ever. Women's-specific design ensures the best possible fit and comfort. 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. Magnetic Facemask Integration (MFI) seals Anon's MFI facemask accessories (sold separately) to the goggle in one quick snap. Full perimeter channel venting ensures maximum airflow for clear, fog-free vision in all conditions. Includes a spare lens for cloudy conditions, a compression-molded case, and a microfiber goggle bag for storage and wiping the lenses clean.