Get every anti-fog advantage for your 509 Aviator 2.0 Goggles by adding condition-specific tints from the 509 Aviator 2.0 Fuzion Flow Lens collection. What sets these lenses apart is industry-first technology that fuses Super Anti-Fog inner and outer lenses into one optically clear view, then adds high-flow venting to eliminate fogging. When it's time to swap lenses, the 5MAG magnetic system makes it faster and easier than you ever thought possible.