The largest field of vision and sharpest opticsWith the introduction of Birds Eye Vision- ™ technology, the 4D MAG™ sets new standards and lets you see more than ever before. This state-of-the-art innovation expands the entire field of vision by 25 percent compared to the I/O MAG™. In addition, thanks to the double locking mechanisms integrated in the side arms of the frame, changing lenses is even simpler and faster. Thanks to ChromaPop™, the 4D MAG™ takes you into a bigger, brighter and sharper world. ChromaPop™ Sun Red Mirror Lens The more you see, the more you experience. Smith’s superior ChromoPop™ technology enhances the clarity of natural colours so you can see more detail without straining your eyes.Transmittance of visible light: 16 % ChromaPop™ Storm Yellow Flash Lens Made to bring out the best in an environment when the storm is blowing in and the light is going out. Optimises your contrast even on the worst days so you can stay out longer.Transmittance of visible light: 65 % FeaturesSmith MAG™ lens changing systemBirds Eye Vision™5X™ anti-fog technologyTLT lens technology for crystal clear visionQuickFit strap adjustment systemThree-layer DriWix foam has a moisture-regulating effectAirEvac™ ventilation system integrates perfectly with Smith helmets for fog-free lensesUltra-wide, silicone-coated goggle strap for a secure and non-slip fitHard case with microfibre pocket