Magnetic lens change and MFI simplicity, with sleek cylindrical style and the benefit of a terrain-defining, high-contrast Perceive lens.   The Anon M3 Goggles feature Magna-Tech® quick lens-change technology, using powerful magnets to make lens changes easier than ever. A low-profile cylindrical lens offers a wide field of view, while terrain-defining Perceive optics enhance contrast for a clear read on every feature, no matter the light. Full-perimeter vents plus moisture-wicking face foam provide fog-free clarity to anticipate every turn. They are MFI® compatible for seamless face mask coverage and over-the-glasses compatible for wear with eyeglasses. They include a bonus Perceive lens for cloudy conditions, an MFI face mask, and a microfiber bag for storage and lens cleaning. Features: Medium Fit Unisex frame design fits small to medium faces; Helmet compatible Magna-Tech Magna-Tech® quick lens-change technology uses magnets for a seamless and secure lens-to-frame seal that makes for easy lens changes and unsurpassed lens retention. Perceive Lens Technology 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. Lenses offer 100% UV protection and exceed ANSI Z87.1 impact test standards. Cylindrical Lens, OTG Cylindrical injected lens design reduces peripheral distortion; Over-the-glasses compatible frame designed to accommodate prescription eyewear underneath the goggles. MFI® Compatible MFI® technology (Magnetic Face Mask Integration) uses magnetic connection to quickly seal your face mask to your goggles without obstructing ventilation for a gapless setup that seals out the elements. Tech Specs: Technical Features Anon Cylindrical Lens Technology Magnetic Facemask Integration Bonus Lens Included Magna-Tech® Sunny Red Lens Fit Standard Fits Over Glasses Warranty All Anon products are backed by a 1-year warranty from date of purchase. Anon M3 Snow Goggles + Bonus Lens + Mfi® Face Mask - Mars/Perceive Sun