Giro's Aeon is the pinnacle of lightness and comfort and a great choice for your road riding. This trick lid dropped 28% off the weight of its predecessor, while actually adding features. For durability it boasts Giro's In-mold polycarbonate shell with a reinforced thermoformed Giro SL Roll Cage, and for comfort there are 24 vents with Giro's Wind Tunnel technology to draw the air through. Complementing the ventilation is Giro's Roc Loc 5 retention system and anti-microbial X-Static padding for a custom fit and exceptional comfort.