What is ARC?
Anti-Reflective Coatings or ARC is a multi-layer metal oxide coating process applied to both sides of the Ultra-Clear lenses. This allows more light to enter the mask by reducing light reflections off the inside and outside surface of the lens. The metal oxide coating is only a few microns thick.
Why do you need ARC lens technology lenses?
Between 4-12% of light can be reflected back or lost by the standard green float glass mask lenses. ARC technology lenses are especially important for SCUBA divers underwater, where available light is quickly absorbed by the surrounding water.