Ratio - Men's Winter Sports Helmet

Ratio - Men's Winter Sports Helmet




The Giro Ratio winter sports helmet is a no nonsense helmet with many technical features. Beneath the sleek silhouette, you’ll find the adjustability of an In Form fit system, Thermostat Control adjustable venting and compatibility with Giro audio systems.


  • Winter sports helmet
  • Hard shell construction
  • Super Cool vents with Thermostat adjustable control
  • Stack ventilation system
  • In Form fit system and Vertical Tuning
  • Compatible with Giro audio systems

Store availability

Please note that store inventory is updated online every 24 hours. As a result, do not hesitate to contact the store before going to confirm product availability. Inventory may vary by store.

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