A pure racing helmet boasting optimal performance, functionality, and safety, the X-Fifteen is the latest generation of Shoei's most technologically advanced sport and competition model. The X-Series hags earned the praise of the world's top racers, including 8-time World Champion Marc Marquez. Incorporating valuable data learned through years of international race wins, the X-Fifteen is a high-performance work of art that possesses incredible advancements in aerodynamics, ventilation, vision, comfort and adjustability. Aerodynamics Among the most important and widely studied properties in racing, no stone was left unturned during the development of the X-Fifteen's aerodynamics. Designed and refined in Shoei's state-of-the-art wind tunnel facility, the X-Fifteen boasts impressive improvement in all aerodynamic performance measurables. Racing Ventilation Overheating while riding and racing can have a direct impact on rider fatigue and safety, which is precisely why ventilation performance was a crucial feature while designing the X-Fifteen. Wind tunnel testing throughout development revealed optimal airflow in multiple riding positions, but none more important than the aerodynamic, tucked racing position. Racing Shield System The X-Fifteen's CWR-F2R racing shield system features improved visibility, functionality and performance over its predecessor, and like all Shoei shield systems, protects against 99% of the sun's damaging UV rays. Thanks to Shoei's innovative 3D injection-molding process, the CWR-F2R shield offers a distortion-free view throughout the entire X-Fifteen eyeport. Safety Few characteristics of a motorcycle helmet are as critically important as its first and second layers of defense, which is precisely why the new X-Fifteen features the SHOEI-exclusive Multi-Ply Matrix AIM+ shell and Multi-Piece, Multi-Density EPS liner. MULTI-PLY MATRIXAIM+ SHELL Multi-Piece/MULTI-DENSITYEPS LINER EMERGENCY QUICKRELEASE SYSTEM (E.Q.R.S.) COMFORT The X-Fifteen is equipped with a fully removable, washable, adjustable and replaceable 3D Max-Dry Custom Interior System II that features innovative, patented comfort and performance technology.