The adjustable ventilation with thermostat control ensures perfect air circulation when ascending and descending, and the stack ventilation keeps the goggles fog-free, no matter how much energy you exert. The fit can be adjusted at the touch of a button with the In Form Fit System, and the Multi-Directional Impact Protection System can provide more protection in the event of angled impacts. All of these technologies are housed in a progressive brim design that allows for seamless compatibility with Giro eyewear.