These toric-lens goggles offer the best optics, widest field of view, and simplicity of a quick-change magnetic lens system in a frame designed for smaller faces. The Anon M4S Toric Goggles feature the same high-end performance of the M4 Goggles in a frame scaled for medium-sized faces. They offer a precise helmet-to-goggle fit with the wide field of view and enhanced peripheral vision of a toric lens a frame scaled to fit smaller faces. The innovative MAGNA-TECH quick lens-change technology uses a powerful magnetic interface that allows you to swap lenses with ease. The M4S offers the unprecedented versatility to switch between toric and cylindrical style lenses. This edition of the M4S includes two toric lenses featuring PERCEIVE optics for high-contrast, terrain-defining clarity, and the best anti-fog treatment for crystal clear vision through a wide range of conditions.