HJC I91 Bina HelmetHJC i91 Bina Helmet The HJC i91 Bina is built for riders who want comfort, function, and style on long hauls. Its lightweight Advanced Polycarbonate Composite Shell keeps fatigue low, while the improved aerodynamics give you a smoother, more stable ride. The drop down multi step sun visor is ready for changing light, and the 3D contour fit means all day comforteven for riders with glasses. Reflective trim adds visibility when the sun goes down, and