Mips Air is a rotational management system RMS that is specifically developed and designed to be the lightest system possible to help reduce rotational energies otherwise transferred to the head during an impact or crash. The Mips Air technology is integrated into the padding of the helmet and enables the 10-15mm of relative movement between the energy absorbing layer and the padding. The relative movement of the Mips Air is enabled by having a backing of polycarbonate PC with a special low friction treatment and being held by specially designed fixations enabling movement in all directions. By being integrated into the padding the system is as light as it gets and designed to fit each specific helmet and size, barely being visible to the user and adding only limited weight to the helmet.