Arai XD4 Helmet (LARGE) (WHITE) The Arai XD4 Helmet replaces the category leading Arai XD3 Helmet.The Arai XD series is a favorite among dual-sport and adventure riders because of the very low weight, extensive safety features and comfort. Now, Arai is pushing the envelope by improving the widely popular Arai XD3 with the Arai XD4 Helmet. Notable improvements for the XD4 are better ventilation with redesigned face vents and a venturi vent at the brow, adjustable cheek pads, a new visor system and a new locking face shield for improved visibility and superior aerodynamics.New comfort headli