Shoei Center Pad Neck Type-P M13 X-SPR Pro - IndentThe SHOEI X SPR Pro's highly customisable inner padding ensures that the helmet stays firmly on your head, on every straight, and in every curve of the race track. Headpad modules for the X SPR Pro can be used to replace the original module or for individual customization. By replacing the neck pad from the original size M9 with the optional, thicker size M13, you can specifically adjust the fit of the helmet at this point to your individual head