Ionos is the most ventilated and technologically advanced road cycling helmet Giro has ever created.
Giro’s famous in-mold composite sub-frame (I.C.S.™) provides the strength to support 21 of the largest vents ever carved into a helmet. These massive vents coupled with an intricate network of internal channels create a cooling system Giro calls Wind Tunnel™ ventilation.
The difference is remarkable and after one ride you’ll agree: the Ionos is the coolest, best-ventilated helmet available. This is the reason that Grand Tour champions like Lance Armstrong and Alberto Contador choose Ionos to stay cool on the hottest days.

Features:

• Can be used for: Road Race, Triathlon, MTB XC Race, Cyclocross, Track Race.
• In-mold composite sub frame (I.C.S.)
• X-static padding
• EPS liner
• Polycarbonate shell
• Fit System: Roc Loc® 5
• Ventilation: 21 Wind Tunnel™ vents
• Internal channeling
• Complies with US CPSC and EN 1078 safety standards

X-Static Padding
X-Static delivers unmatched performance and comfort, for the life of the product. 99.9% Pure Silver covers a core fibre. Antimicrobial, eliminates odor, regulates temperature and eliminates static.

Sizing Guide: