Look cool while you're riding cool: AirFit® permits a rider to personalize helmet fit through air adjustable cheek pads. The Calavera is the newest VX-17 top-line dirt helmet. It gets our lightweight and tough Fiberglass/Kevlar Matrix shell, an adjustable aero-shaped visor that reduces lift at speed and reduces glare, a roost guard and a super-comfortable, removable interior that hangs tough and snug through whoops and high speed sections. It also flows plenty of air through its ventilation system and throught a big eye port that accepts the biggest googles. Mostly, the VX-17 just plain looks and works like it should cost a lot more. Fiberglass/Kevlar™ Matrix Shell: High-tech, lightweight and tough. KwikWick® moisture-wicking helmet liner and cheek pads: Breathable, easily removable and washable. Fully-adjustable, aero-tuned visor: Reduces lift at high speeds. Ventilation System: Large intake manifolds and aero-tuned rear vents maximize airflow through the helmet. Large Eyeport: Fits all goggles and provides maximum visibility. Strap Grip: Keeps goggle strap in place. Padded Chin Strap with KwikWick™ material: Comfortable and secure. Custom liner and cheek pad kits: Available in wild patterns. All VX series helmets can easily be converted to snow use with the snow conversion kit. Snell/DOT Certified.