Smith's 4D MAG Low Bridge Fit Goggles take everything we love about the I/O MAG, and added a whopping 25% to our field of vision to see every cliff, logjam, and chute in our line. With BirdsEye Vision opening up the field directly in front of us and ChromaPop lenses optimizing the colors and details so we can comprehend them, these goggles help us see the entire run ahead even better. Plus, the convenient Mag interchangeable lens system helps us swap out the included lenses for whatever the changing light conditions call for.