Cybex Aton M At only 4.2 kg in weight, the Aton M from the CYBEX Gold Collection is an absolute lightweight solution. In combination with the Base M & Sirona M2 i-Size, the Aton M is part of our CYBEX Modular System. We never make compromises on safety, and the integrated Linear Side-impact Protection System (L.S.P.), partnered with the energy-absorbing shell, offers increased safety in the case of a side collision. It also supports newborns with the removable newborn inlay. The Aton M is travel system-ready and compatible with gb and CYBEX strollers.