The men's Anon M4 Toric SONAR Goggle offers the most precise helmet-to-goggle fit with maximum field of vision, SONAR by ZEISS clarity, powerful magnetic lens retention, and the unprecedented versatility to switch between toric and cylindrical lenses. Two toric lenses (one installed in the frame, and one spare) are what's included with this version of the Anon M4 goggle. Toric lens technology mimics the curvature of the eye for superior optics, enhanced peripheral vision, and maximized venting for fog-free vision. Magnetic Facemask Integration (MFI) seals the included Anon MFI facemask to the goggle in a snap. Also includes a compression-molded case and a microfiber goggle bag for storage and cleaning the lenses.