The Giro Ionos Road Cycling Helmet has a new Roc Loc 5. Ionos is the most ventilated and technologically advanced road cycling helmet Giro has ever created. Our proprietary 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 we call 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.

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Features:

Suggested Use: Road Race, Triathlon, MTB XC Race, Cyclocross, Track Race, Enthusast Road

Construction: In-mold Composite Sub Frame - EPS liner, polycarbonate shell

Fit System: Roc Loc 5

Ventilation: 21 Wind Tunnel vents, internal channeling

X-static padding, award winning design, multiple Grand Tour championships

Sizing: S (20"-21.75"/51-55cm)

M (21.75"-23.25"/55-59cm)

L (23.25"-24.75"/59-63cm)

UPC: 361857329264
Manufacturer Part Number: 2025494