The mirrored lenses mounted on these glasses are treated with advanced revo coatings that return excellent performance in different light conditions and in any environment. The mirroring of the lens guarantees the maximum possible brightness and a highdefinition lens. Cressi sunglass lenses are designed to protect your eyes from the sun, including near the water, and they shield against all uv rays, so you can savor the sunshine while enjoying comfortable vision. If your eyes are sensitive to the light, choose a dark shade. Lighter and gradient lenses are perfect for cloudy skies with little sunlight, while darker lenses protect your eyes in bright sunlight