Giro's Aerohead MIPS takes the same wind-cheating silhouette as the leading-edge Aerohead Ultimate, but adds increased ventilation to keep triathletes and time trialists cool when the competition is hot. By rethinking the wearer's head position into the middle of the helmet, the angle of the helmet is less disruptive of airflow. No need to hold an aggressive position for a full-length IronMan to achieve low drag numbers! By using a polycarbonate shell, Wind Tunnel ventilation, and internal channeling, this helmet is proven to boost cooling power while remaining aerodynamic. Additionally, Aerohead MIPS features a wrap-around eye shield that offers an impressive field of view with the convenience of a magnetic anchor attachment to allow easy storage of the lens in the "flipped up" position—perfect for fast swim-to-bike transitions. A Roc Loc 5 Air retention system brings an excellent fit to the Aerohead MIPS, with one-handed adjustability.