QUICK-CHANGE MAGNETIC-ASSISTED LENS SYSTEM - The Quick-Change Lens System uses self-locating magnets to assist in lightning-fast lens replacement. EXV+ LARGE FIELD OF VIEW - Delivers the largest field-of-view in its class so you can truly expand your vision on the mountain. EVAK VENT TECHNOLOGY - EVAK vents minimize the chance of fogging by releasing moisture while simultaneously creating a barrier from the elements. EVAK Vent Tech uses a new foam made from an ultra-durable, non-absorbent material. ADDITIONAL FEATURES - Asian Fit, Toric VIVID lenses with Optics by Zeiss, Triple layer face foam with microfleece facing, Anti-fog coating, Seamless Compatibility with all Giro Helmets, Silicone on the inside of the strap to prevent slippage. INCLUDES - Giro Contour Asian Fit Ski Goggles with 1 Full Sun/All Condition Vivid Lens and 1 Overcast/Low Light Vivid Lens.