Finish fog-free and in gold with the most advanced anti-fog protection ever! arenas new Swipe Anti-Fog Technology extends the life of your goggles by restoring the anti-fog protection to pristine condition. Activated by gently swiping the inner surface of the goggles lens with fingers to bring pristine clarity to the surface of the goggles lens. When goggles become foggy activate the revolutionary Swipe anti-fog protective film by gently swiping the inner lenses five times with your fingertip while the goggles are in the water. The existing anti-fog treatment in arenas Cobra family of goggles is already one of the best available but you can now keep that out-of-the-box new goggle feeling 10 times longer. Available with clear or dark lenses. Hard mirror polycarbonate lens. 5 piece Adjustable nose bridges: Small Medium and Large for tailored fit and lens gasket placement. Anti-fog lasts 10x longer than our original Cobra Ultra goggles. Dual adjustable silicone strap.