The RF-1100 features an all-new Snell M2010-approved AIM+ shell complete with a shell-integrated spoiler. Having the spoiler built into the shell allows it to maintain a consistent shell thickness and weight all while reducing lift which will make riding at speed with the helmet more comfortable. Shoei offers five shell sizes in the new RF-1100 to ensure a custom fit for heads between the sizes of XXS-XXXL. The cheek pads and center pad of the latest RF helmet are fully removable, washable, and replaceable. The center pad components are three-dimensionally shaped to match the contours of a rider's head and the multi-layer cheek pads are available in six different thicknesses to further customize the fit of the helmet. In addition, there are eyeglass channels in the liner and an integrated neck pad that, when combined with the other aerodynamic features of the helmet, provide an extremely quiet riding experience. Completing the comfort package are a removable breath guard and chin curtain.