Giro Ionos

Giro Ionos
  • Color: Black/Charcoal
  • Color: Blue/Black
  • Color: Matte Black/Red
  • Color: Matte Red/Ti/Lance
  • Color: Matte Titanium
  • Color: Matte Yellow/Black/Lance
  • Color: LiveStrong
  • Color: White/Silver
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From the top of the podium of the Tour de France, straight to your head comes Giro's Ionos. Built to the exacting demands of ProTour riders, the Ionos offers premium cooling, chic style and maximum protection. Giro's 21 massive Wind Tunnel vents keep you cool and dry, while the In-Mold Composite Sub Frame provides massive amounts of protection when you need it most. Plus, the Ionos uses Giro's top-notch Roc Loc 5 system for a supremely comfortable and secure fit.

- Small = 51-55cm
- Medium = 55-59cm
- Large = 59-63cm

Giro's Roc Loc 5.

A) Micro Dial - A ratcheting dial that’s simply twisted to tighten and loosen the fit.

B) Three-Position Vertical Fit - Lets you raise and lower the Roc Loc system to the perfect position.

C) Ergonomic Arms - Minimal shape fits comfortably and accommodates eyewear.

D) Dual Pods – Supportive, minimal panels that cradle your head for the utmost in comfort and safety.

E) Strap Management - The straps (not shown) are woven through the fit system to always remain in the right place.



Watch a video of Levi Leipheimer talking about Giro’s Roc Loc 5 fit system.

Part Numbers

Option UPC MPN
Black/Charcoal / Small 361857313829 2022995
Black/Charcoal / Medium 361857313836 2022996
Black/Charcoal / Large 361857313843 2022997
Blue/Black / Small 361857313799 2022992
Blue/Black / Medium 361857313805 2022993
Blue/Black / Large 361857313812 2022994
Matte Black/Red / Small 361857313737 2022986
Matte Black/Red / Medium 361857313744 2022987
Matte Black/Red / Large 361857313751 2022988
Matte Red/Ti/Lance / Small 361857329257 2025493
Matte Red/Ti/Lance / Medium 361857329264 2025494