The Anon Men's M2 + MFI® Snow Goggles feature MAGNA-TECH® quick lens change technology, using powerful magnets to make lens changes easier than ever. Their spherical lens mimics the curvature of the human eye for precise optics, while the PERCEIVE lens enhances contrast for the best possible definition and terrain recognition. Magnetic Face Mask Integration (MFI®) enables seamless face mask coverage, while full-perimeter vents ensure maximum airflow for a clear, fog-free view in all conditions. They are over the glass compatible, include a bonus lens for cloudy conditions, an MFI face mask, and a microfiber bag for storage and lens cleaning. The Anon Men's M2 + MFI® Snow Goggles are perfect for long days on the mountain.