Save $10 on orders over $100 with deal code P2KU4
Special offer expires Tuesday, May 31.
Save $10 on orders over $100
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Ionos is the most technologically advanced road cycling helmet Giro has ever created. Or anyone else. Our revolutionary in-mold composite sub-frame (I.C.S.(tm)) 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 exhaust ports, create a cooling system we call Wind Tunnel(tm) ventilation, making Ionos the coolest, best-ventilated helmet anywhere…perfect for keeping riders like 2007 Tour de France champion Alberto Contador comfortable, even on the hottest days and over the most tortuous Alpine climbs.S 20"-21.75" / 51-55cm
M 21.75"-23.25" / 55-59cm
L 23.25"-24.75" / 59-63cm
Fit System: Roc Loc(r) 4
Ventilation: 21 Wind Tunnel(tm) vents, internal channeling
Features: In-mold composite sub frame (I.C.S.(tm)), X-static padding