THE CALDERA II MODULAR MOTORCYCLE HELMETThe all-new Caldera II is a value packed modular helmet designed to provide you with the freedom and flexibility for riding in any weather condition, all season long.With features including a 30% larger optically correct clear shield, ultra-comfortable removable wick-dri liner, and modular flip-up helmet design, the Caldera II will comfortably support you during both short and long-distance rides.CALDERA II MODULAR HELMET FEATURES:• Modern, lightweight 3.5 lbs aerodynamic shell.• Massively expanded field of vision (30% larger!).• Modular helmet design with secure metal jaw-locking system & easy one-handed front jaw opening switch.• 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. • 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 detailsSizing: 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”