The iconic Arai VX Pro-3 receives its long-awaited replacement in the form of the Arai VX Pro 4 Helmet. The Arai VX Pro4 dirt helmet is for the serious off-road enthusiast, who requires nothing but the utmost in comfort and protection from their lid. The round shell shape is based on Arai's R75 Shape Concept and is optimized for strength and the peak, mouth vent and top vents are all designed to break away upon impact leaving less surface mass to catch or bind. Features intermediate oval shape which fits the majority of head shapes in the North American markets. Consistently round and smooth shell, maintaining Glancing Off shape concept. Rounded chin bar maintains compact shell length resulting in less protrusion, leaving it less likely to catch and dig during a spill. Super Fiber provides 30% Higher tensile strength than standard fiberglass and provides increased penetration resistance. DOT Approved, Meets FMVSS 218 Standards. Peripherally Belted Complex Laminate Construction (PB-CLC) shell. Chin bar vent grill installed on a rounded chin bar, mounted form the outside on the exterior vent cap and can be easily removed for cleaning or damage replacement-vent cap also designed to break way from the chin bar in event of impact. The Air-Through top-rear-duct center brace also functions as a goggle-strap locator. Diffusers can be removed or replaced quickly and easily by removing a single screw on the rear-duct center brace. Air outlets on the peak are made larger to compensate for increased lift and is made with durable, yet extremely flexible material, mounted with plastic screws designed to break on impact, so as to not snag on impact which could send energy into the helmet or cause excess rotational force. Emergency release cheek pad design allows trained medical personnel easier access to an injured rider, reducing the chance of unintentional injury. Removable neck roll allows easy and convenient cleaning of the helmet