What Our Gearhead® Experts Are Saying: "The Nine C is my go-to recommendation for skiers who want reliable protection without the extra weight or price. It fits great, looks clean, and the vent system really helps when temps swing midday."When we’re chasing first tracks or cruising groomers, we want a helmet that keeps us protected and comfortable without feeling bulky. The Giro Nine C Helmet delivers with a sleek profile, in-mold construction, and intuitive features that make it a staple in our winter kit. An adjustable fit system and audio compatibility make it adaptable for any mountain mission, while the Thermostat Control ventilation system helps regulate heat through changing conditions.