Features of the Smith I/O Mag AC 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 Available in Asian Fit 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