Chaser-X is the third Arai helmet that makes use of the new VAS (variable Axis System) technology that offers a significant larger and smoother shell area above the SNELL test line greatly improving the important helmet glancing off performance. The Chaser-X makes use of an also completely new ventilation system derived from the RX-7V, instantly recognizable by the large, single intake duct on top of the helmet. This Top Ventilation System is derived from the RX-7V diffuser system. The replaceable interior is lined with an anti-microbial fabric. The Chaser-X features FCS (Facial Contour System) and a fixed, non-retractable mini chin cover. The chin vent is also new, while the Formula One developed visor lock system is the same as used on the RX-7V.