Thermostat Control Adjustable Venting allows for perfect airflow whether ascending or descending, and the Stack Ventilation keeps your goggles fog free no matter what your energy output. Meanwhile, its fit can be customized at the turn of a dial via the In Form Fit System and the Multi-Directional Impact Protection System may offer more protection in angled impacts. All this tech business is shielded in a progressive brimmed design guaranteeing Seamless Compatibility with Giro goggles.