Smith 4D Mag DELETETHIS a breathable back panel and

a breathable back panel and a built-in rain cover

A dirty drivetrain causes poor shifting and unnecessary wear to expensive parts

and the hook-and-loop closure locks out dirt and pebbles to keep you feeling like a champ on your long XC rides

choose an optional Iridium lens coating to minimize glare and tune light transmission

Smith 4D Mag DELETETHIS a breathable back panel andYou can now see more than ever before. The all new 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. In addition we have evolved Smith MAG 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 featuring ChromaPop