The top-of-the-line Giro Ionos (pronounced eye-oh-nOs) road bike helmet now comes in the signature LIVESTRONG yellow and black colorway. Through Giro's careful sculpting, weight scrutinization and use of lightweight materials, the Ionos seems to disappear when you put it on. Ionos is built around 21 massive vents and features a system of ventilation channels throughout the liner. Internal exhaust channels thrust cool, fresh air over and around the head while forcing heat and stale air out. In-mold technology fuses the liner with the microshell to create an exo-skeleton that's light, cool, and exceptionally durable. In addition, the subframe is reinforced around the ribs and vents for incredible structural support, impact dispersion and penetration resistance. Roc Loc 4 offers full adjustment of the fit tension and the helmet's vertical position for a truly personalized fit. Giro's proprietary fitting system results in a helmet that fits 98% of the population, yet looks as if it was made just for you.
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