Regardless of the weather conditions, your eyes are continuously challenged by strain, fatigue and lighting conditions. Our Night & Day system includes the default night driver lenses that provide better contrast and visibility as well as two additional interchangeable EasyClips: The Sunny Day Easyclip© and the Anti-Fatigue Easyclip©, suited for long distance drives. With the Night & Day System, including Turboflex© by Easyclip©, you are ready for any driving condition. 49/21/135 mm. Round, gray lenses. Clear lens can be used with prescription of your choice.