Arai XD-4 Helmet - GraphicsBrandon's choice for ADV and summer riding! ARAI XD 4 Dual Sport Helmet Snell 2020 Arai is the only company offering multiple interior fit shapes to better address the infinite variety of riders head shapes and sizes. No one pays more attention to the subtle variations and infinite possibilities of the human head shape than Arai. Why? Because its the secret to getting the best comfort and fit. So for more than three decades, Arai has pioneered