Smith 4D Mag Ski and Snowboard Goggles. Frame Color is Slate. Lens is Chromapop Everyday Red Mirror (VLT 25%). Bonus Lens is Chromapop Storm Yellow Flash (VLT 65%). You can now see more than ever before. The 4D MAG raises the bar for lens innovation with the introduction of BirdsEye Vision. This state of the art lens technology has a 25% increase of overall field of view compared to the I/O Mag.
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