The SHOEI X-Fifteen's highly customizable inner padding ensures the helmet stays firmly on your head, on every straight, and in every curve of the race track. These pads can be inserted into the pockets provided on the back of the head pad modules of the helmet to adjust the fit of the head padding to your individual head shape and personal needs. If your helmet feels slightly too long, too wide, or sits too low for your head shape, you can tailor the fit's length, width, and height using specific pads. For significant adjustments, opt for these hard pads. For minor adjustments, the X-Fifteen Type-P Comfort Pad Set Soft is your best choice.