Great features in a clear, elegant design. The R1 OTG was inspired by the design of the RVX MAG OTG and is perfect for anyone looking for a simple and elegant look. As the name suggests, the R1 OTG can be worn over goggles and features Lumalens color-optimized lenses.Lumalens® Rosegold IonLumalens® technology offers optimized colors and glare protection thanks to an ionized lens coating. The hard coating is scratch-resistant and repels dirt, dust, oil, and water.Light transmission: 42 %