To start, the proprietary Multi-Ply Matrix AIM shell was revised to accommodate an updated internal sun shield without affecting the design of the multi-piece, multi-density EPS impact liner inside. The shell will be available in four different shell sizes for an accurate fit across its XS–2XL size range. The shape of the shell was revised too, in order to provide better aerodynamic performance. It’s more compact than its predecessor, has a rear spoiler and redesigned intake and exhaust vents, all to make it more effective when air flows over the lid. According to Shoei’s reported wind tunnel testing results, upward lift force was reduced by 7 percent, drag was reduced by 1 percent, and horizontal pull at high speed was reduced by a remarkable 43 percent.