Features of the Smith I/O Mag XL ChromaPop Snow Goggle Smith MAG lens change system Includes bright light and low light Performance lenses Spherical carbonic-x lens TLT lens Technology for crystal clear vision Patented Porex filter prevents optical distortion during changes in elevation Medium Fit QuickFit strap adjustment system with clip buckle 5X Anti-fog inner lens 3-Layer DriWix face foam Helmet compatible AirEvac integration Technology to reduce fogging Ultra-wide, silicone backed strap Dual-axis outrigger position system Includes microfiber goggle bag with replacement lens sleeve