UltraHD Optical Clarity Lens Technology - maximum protection with uncompromised optics HiPER Contrasting Lens Technology filters out certain color wavelengths to create more contrast High Altitude Lens Technology alleviates lens distortion by releasing pressure at higher altitudes. Scratch and Impact Resistant Lens with hydro and oleophobic coatings keep your lens smudge aned scratch free Dual Pane Anti-Fog Lens keeps your vision clear by regulating the temperature of the space between two lenses The Snowcraft XL is an oversized option of it’s sibling — for those looking to turn up the volume on the style dial. The Snowcraft XL lens is compatible with the 100% Snowcraft goggle, so you can pack less and focus more on what matters; giving 100% on the mountain.