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Giro Ratio Mips Helmet-Citron balances impeccable safety features with a low-profile, clean style. MIPS technology complements traditional hardshell construction for direct and rotational impact protection, while the in-form fit keeps the Ratio firmly in place. Cap that off with a stacked thermostat vent control and Outdoor Tech audio compatibility and the Giro Ratio Helmet looks more and more like the perfect shred lid for winter riding.


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