Customize your M4S goggles with a terrain-defining, high-contrast PERCEIVE lens.Anon offers an extensive selection of goggle lens options in various tints for adapting the Anon M4S goggles to any weather condition. The M4S is unique in that it is compatible with cylindrical and toric lenses. These Anon M4S cylindrical PERCEIVE lenses feature high-contrast, terrain-defining optics with a coating that resists scratches, smudges, and water to give you unmatched clarity, plus an anti-fog treatment for crystal clear vision through a wide range of conditions. FEATURES: Designed to fit Anon M4S Goggles PERCEIVE lens provides high-contrast vision and terrain defining clarity in just about any light condition; A hydrophobic and oleophobic coating provides unmatched smudge, scratch, and moisture resistance on the outer lens surface for clear optics and easy cleaning Toric Injected Lens combines the best design characteristics for enhanced clarity and peripheral vision while maximizing the goggles vent volume Integral Clarity Technology Anti-Fog exceeds industry anti-fog treatment standards, delivering crystal clear vision that lasts for an extended period of time MAGNA-TECH quick lens-change technology uses a magnetic interface for a seamless and secure lens-to-frame seal that makes for easy lens changes and unsurpassed lens retention Lens compression case included