The Shoei RF-SR Helmet takes every step possible to deliver a quiet, comfortable ride. The CWR-1 shield is held firmly against the eyeport using a… • Aerodynamic properties maximized through extensive wind tunnel and feedback from professional riders. • Dual-Layer EPS liner enhances impact absorption and ventilation. • Four shell and six EPS liner sizes increase fit options that help to comfortably fit most head sizes. • Two upper air intake vents are positioned to maximize air volume into the h