Giro Men's Nine Ski Helmet

Maintaining its position as Giro's most enduring and popular design, the Nine snow helmet has been reinvented for the 201415 season, boasting a streamlined, low profile design and a full array of high performance features to keep you safe and comfortable on the slopes. In mold construction fuses a tough polycarbonate outer shell with an impact absorbing foam liner for a lighter, cooler helmet. In Form fit system enhances helmet stability and features a glove friendly dial at the base of the helmet that provides up to 6 cm of adjustment. Vertical Tuning dials in how the helmet sits on your head to ensure a perfect fit while eliminating gaper gap and creating a seamless lockup with Giro goggles. Super Cool vents pull cool, fresh air in while pushing hot, stale air out optimal vent shaping and maximized efficiency help regulate your core temperature to keep you comfortable all day. Thermostat Control ventilation lets you customize airflow with a simple, low profile control button on the outside of the helmet. Stack Ventilation lines up with the vents in your goggles to help keep them clear and fog free while maintaining total helmet goggle integration. Compatible with all after market Giro audio systems. Certifications: ASTM F2040 11, CE EN 1077. Sizing: Small, 52 55.5 cmMedium, 55.5 59 cmLarge, 59 62.5 cm