THE GIRO AEON™ - THE LEADING COMBINATION OF LIGHT WEIGHT, COMFORT AND COOLING PERFORMANCE. Imagine a helmet that gives you an advantage every time the road climbs or the heat turns up. Until now, you couldn’t get the benefits of lighter weight and better ventilation in a single helmet. But the new Aeon weighs only 222g in a CPSC approved size Medium. Yet it also provides cooling power equivalent to the most ventilated helmet ever made, the Ionos™. Plus it offers the luxurious feel of Roc Loc® 5, and an innovative thermoformed Roll Cage reinforcement. If you’re looking for the best balance of weight, ventilation and comfort, this is the new standard.

Road Race, Triathlon, MTB XC Race, Cyclocross, Track Race, Enthusiast Road 

Features:
Thermoformed SL Roll Cage reinforcement, X-static padding, Roc Loc 5 fit system, Slimline webbing 

Construction:
EPS liner, Thermoformed SL Roll Cage reinforcement, Polycarbonate shell 

Fit System:
Roc Loc® 5 

Ventilation:
24 Wind Tunnel™ vents, internal channeling

  With an ingenious structural design, incredible ventilation and a nearly weightless feel, the Aeon racing helmet is certain to be the envy of the pro-peloton. Structural support and long ventilation channels create more "air space" around your head for a cooler experience. Features Giro's new ultra-light, ultra-strong, Thermoformed SL Roll Cage -- a whopping 49% lighter than the sub frame used in the Ionos helmet. Add on the Roc Loc 5 fit system, Tri-Locs, Slimline webbing, and logo-printed pads for even further weight savings and an unbeatable fit. 

• In-Mold construction reinforces the area around the vents and ribs, creating a one-piece exoskeleton, which allows the helmet to be lighter, more durable and better ventilated than traditional designs
• Thermoformed SL Roll Cage support system is 49% lighter than the one used in the Ionos helmet, yet is still incredibly strong
• Lightweight EPS foam is 15% less dense when compared with the Ionos helmet
• 24 sweeping Wind Tunnel vents with internal channels thrust 15% more cool, fresh air over and around your head while forcing heat and stale air out
• Impact absorbing, antimicrobial X-Static padding with printed logos offers unprecedented comfort and manages moisture
• Quite possibly the best-fitting retention system you've ever experienced, the Roc Loc 5 easily adjusts both fit tension and vertical position with a single hand, plus its 40% lighter than its popular predecessor, Roc Loc 4
• MicroTech Tri-Locs, ultra-light Slimline webbing and metal badging reduce overall helmet weight by 36%
• Certified CPSC