This road helmet is a direct descendant of the pro-level Zephyr, bringing the level of advanced engineering and design to an all-new women's model. It's the perfect combination of minimal weight, aero efficieny, and cutting-edge comfort technologies to help you climb, sprint or ride from dawn until dusk. The all-new Float Fit system offers comfort and security with a streamlined fit and a rubber-coated dial thats easy to adjust on the fly. The Overbrow Ventilation system pulls cool air in through the front and pushes it through an air-channel matrix to minimize drag and prevent overheating. And the adjustable No-Twist Tri-Glides keep the straps flat and properly positioned. Perfect fit, perfect form - from the start line to the podium.