You can now see more than ever before. The all new 4D MAG(TM) raises the bar for lens innovation with the introduction of BirdsEye Vision(TM). This state of the art lens technology has a 25% increase of overall field of view compared to the I/O MAG(TM). In addition we have evolved Smith MAG(TM) by integrating the dual locking mechanisms into the goggle frame outriggers to make a quick and easy lens change system. We know that with BirdsEye Vision(TM) featuring ChromaPop(TM) lens technology, you'll be able to see even more detail as you take on untracked territory. Features: VISION: Smith MAG lens change system uses MAGnets for quick, easy lens changes ChromaPop(TM) lenses enhance contrast and natural color to make the details pop Birdseye Vision(TM) clarifies not just your line, but the riders in your periphery. 5X(TM) anti-fog inner lens for advanced fog-free performance INTEGRATION: Designed for ultimate integration with Smith helmets for maximum comfort, venting and fog-free performance Three-layer DriWix face foam wicks moisture for a fog-free fit Ultra-wide, silicone-backed strap stays put Include two lenses: Bright light and low light ChromaPop(TM) performance tints Goggle hardcase with gogglesoc(TM)