GIRO AVERA SNOW HELMETTHE WOMEN'S AVERA(TM) HELMET'S MOST RECOGNIZABLE QUALITY IS ITS DISTINCT DESIGN LINES, INSPIRED BY GIANT MOUNTAIN LANDSCAPES AND SMOOTH TURNS.The Women's Avera Helmet benefits from lightweight IN-MOLD(TM) CONSTRUCTION and features a personalized fit via the In Form(TM) Fit System with Vertical Tuning. Meanwhile, on-the-go temperature control for maximum warmth or cooling is achieved through Thermostat Control(TM) Adjustable Venting combined with the fog-free Stack Vent. The new Avera truly provides the perfect fit, plush comfort and added protection needed for all conditions and terrain.FEATURES Hardshell With In-mold Hardbody Lower WrapThe two-piece shell combines a tough outer hard shell with a polycarbonate lower shell permanently fused to the liner for durability without excess weight. In Form 2 Fit SystemThe In Form 2 Fit System is lighter and lower-profile than the original, and easier to dial in a custom fit in seconds - even with gloves on. An improved dial design provides up to 6 cm of adjustment plus enhanced stability. Seamless CompatibilityFor optimal performance of both helmets and goggles, Giro products are designed to work together, ensuring a seamless interface between helmet and goggle for an exceptional fit and dependable, worry-free function. Stack Vent TechnologyGiro's Stack Vent was developed based on research showing the majority of warm air that can cause fogging comes from the goggles center top vent. Aligning the Stack Vent in the helmet with the center vent of the goggle helps keep it clear and fog-free. Thermostat ControlThermostat Control Adjustable Venting allows you to custom-tune airflow instantly with a simple, low profile control button on the outside of the help. No other system is faster or easier to adjust, and nothing is more effective at keeping you comfortable.TECH SPECSCircumference: 55.5-59cmConstruction: Women's Styling and DetailsSport: SnowVentilation: Thermostat Control Adjustable Venting Stack Vent TechnologyFit System: The In Form Fit System makes it easy to dial in a custom fit in seconds-even with gloves on. An ergo-friendly dial at the base of the helmet provides up to 6cm of adjustment and enhanced stability.Electronics Compatibility: Compatible with aftermarker Giro audio systems by Outdoor TechCertification: CE EN1077