Anon Synch Dark Smoke . The Anon Sync goggle gives you a clear view and super fast lens change in any situation thanks to Perceive optics and M-Fusion Magnetic Lens Change technology. Continuous ventilation ensures maximum air circulation for clear, fog-free vision.Equipped with Over The Glass (OTG) technology, the Anon Sync can also be worn over optical glasses.The cylindrical, injected lens shape reduces peripheral distortion, and a water and oil-repellent coating provides unsurpassed smudge, scratch and moisture resistance on the outer surface of the lens. This guarantees you the best performance. Perceive Sun Onyx LensThe Perceive Sun Onyx lenses are suitable for very sunny days and the glacier. Perceive lenses give you high contrast to see the terrain better. Light transmission 6 %