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Replacement lens for the Smith Optics 4D MAG goggle.
MAG™
Strong and weatherproof N52 magnets automatically guide the lens into the anchored position. The magnetic function speeds up lens changes to get you back out riding faster.
BIRDSEYE™
The 4D MAG has a 25% increase of overall field of view compared to Smith's I/O MAG. Utilizing Smith's new BirdsEye Vision™, you can now see more than ever before.
Times when you need the eye protection but not the light filtration.
