Cobra Core Swipearena Cobra Core Swipe Swimming Goggles Smoke Black Blue The innovative arena unisex swimming goggles Cobra Core Swipe are ideal for fitness and competition swimmers and triathletes. The revolutionary Swipe anti fog technology lasts ten times longer and can be reactivated by wiping the lens clean with your finger. To do this, gently wipe the inside of the lens five times with your fingertip while the lens is in water. Simply repeat this procedure