The I/O Mag XL utilizes Smith's new Mag lens change system. With the use of magnets combined with 2 locking mechanisms changing lenses is quick, easy and secure. The I/O Mag has one of Smith’s largest spherical lenses for maximum field of view and it has 5X™ anti-fog, Smith’s highest level of anti-fog technology, and TLT optics for crystal clear vision. The original I/O was the first goggle to solve the problem of what to do when changing light and weather demanded different lenses and the Mag system simplifies that lens changing process.

Match a Smith helmet & goggle together and the vents in the top of the goggles match the position of the vents in Smith helmets. As air flows over the helmet the vents suck hot air out of the goggle to reduce fogging.