Advanced Polycarbonate Composite Engineered Shell: 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.