The terrain-defining clarity of PERCEIVE optics and the simplicity of M-Fusion for fast, easy lens changes. The Anon Sync Goggles offer the terrain-defining clarity of PERCEIVE optics and the convenience of our M-Fusion magnetic latch system to secure and guide lenses into place. The Asian fit features enhanced face foam that tapers to be 5-7mm thicker at the nose for improved fit. Full-perimeter venting ensures maximum airflow for a clear, fog-free view in all conditions. They are over the glass compatible for wearing with eyeglasses and include a bonus lens for cloudy conditions plus a microfiber bag for storage and lens cleaning.