THE CALDERA ELECTRIC SNOW II MODULAR SNOWMOBILE HELMET The all-new Caldera Electric Snow II was created to make your next Winter adventure as easy and enjoyable as possible without breaking the bank. Featuring a stylish aerodynamic shell with EPS lining, easy access modular flip-up design, and 30% larger heated electric snow shield, the Electric Snow II offers the safety and adaptability that your next Winter adventure demands. CALDERA II MODULAR SNOWMOBILE HELMET FEATURES: Massively expanded field of vision (30% larger!). Modular helmet design with secure metal jaw-locking system & easy one-handed front jaw opening switch. Breath box attachment reduces fogging by deflecting your breath away from the face shield. Heated snow shield with extra long silver plated, fuse protected split cord that works with all snowmobiles, atvs or motorcycles to prevent ice buildup and eliminate fogging. Drop down smoke sunshield with side-helmet action switch. 3 closable intake vents with an angled passive anterior exhaust vent to allow maximum air flow out without allowing wet weather in. Washable, replaceable Comfort Tech Wick-Dri Liner System keeps you dry and comfortable. High density channeled air flow EPS liner is pre-drilled to accommodate nearly all communication systems. Padded quick-release strap system. Lightweight 3.5 pound aerodynamic shell. DOT & ECE approved helmet offers world class protection. Every batch of snowmobile helmets are randomly tested to ensure safety standards are met. 5 year limited warranty & guaranteed to be free from defects in materials & craftsmanship for the lifetime of the helmet. *See Vega website for full warranty details Sizing: Measure around your head 1" above your eyebrows & the largest part of the back of your head: -X-Small : 20.87”- 21.26” - Small: 21.65" - 22.05" - Medium: 22.44" - 22.83" - Large: 23.23" - 23.62" - X-Large: 24.02" - 24.41" - XX-Large: 24.80" - 25.20” -XXX-Large: 25.60” – 26.00”