The most ventilated helmet Giro has ever made, the Ionos features Giro's in-mold composite sub-frame construction that fuses the Polycarbonate shell to the EPS impact-absorbing lining, allowing for massive vents to be carved out of the helmet without compromising the structural integrity or protection.

• Award winning design
• In Mold Composite sub-frame
    - Outer shell fused with the impact-absorbing EPS liner
    - Shell is molded to be a structural part of the helmet
    - Massive vents don't compromise protection  
• Composite plates are directionally "tuned"  
    - Provides structural support
    - Impact dispersion
    - Penetration resistance
• 21 Wind Tunnel™ vents
• X-static padding
• Roc Loc® fit system
    - Allows full adjustment for custom fit  
    - Adjustable fit tension and vertical position  
• In-mold EPS liner
• Recommended applications:
    - Road races
    - Triathlons
    - MTB XC races
    - Cyclocross
    - Track races
• Polycarbonate shell