The Smith I/O Mag XL is the largest MAG goggle from Smith. Featuring a huge field of vision and sharpest optics to give you the best possible read on the terrain. The MAG tech allows you to interchange the two included Chromapop lenses in a jiffy.  The I/O Mag XL is a large fit goggle, suitable for larger face shapes. Smaller faced users don't fret, there is the Regular I/O MAG with the same features and tech but in a smaller framed package. The size of the I/O Mag XL gives it tons of space and is one of our favourite models for OTG compatibility. Also included is a Gogglesoc lens protector, and microfiber bag for cleaning and storage. Features Spherical Carbonic-x lens for distortion-free optics and impact resistance ChromaPop™ lenses enhance contrast and natural color to make the details pop 5X™ anti-fog inner lens for advanced fog-free performance Smith MAG™ lens change system uses magnets for quick, easy lens changes Fits over the glasses (OTG) and is compatible with our optical docking system (ODS) prescription lens insert Designed for ultimate integration with Smith helmets for maximum comfort, venting and fog-free performance QuickFit strap adjustment system lets you find the right fit fast Ultra-wide, silicone-backed strap stays put Three-layer DriWix face foam wicks moisture for a fog-free fit Responsive Fit™ frame adjusts to your face for a precise, comfortable fit Large fit Smith I/O Mag XL Ski Goggles