This is an enhanced ?i-SIZE? child restraint system. It has been approved under Regulation ECE R129/00 for use on ?i-SIZE compatible? vehicle seats when used with the iPlatform base. The KOOS iSIZE R1 child car seat can also be installed with ISOFIX (category D as indicated in the vehicle instruction manual) or with the car seat belt, universal classification. Depending on your car and personal needs, you can choose the best installation method that suits your situation. As the Koos iSize R1 is also fitted with the PROFIX system, it means that it can be installed into the car or fitted onto the Jané chassis to make a travel system with just one easy click-and-go movement. Like the rest of the Jané range, the Jané KOOS iSIZE infant car seat is fitted with the PROFIX system (patented). This means it can be connected quickly and safely with just one movement onto the ISOFIX base in the car or onto the pushchair chassis. With Jané everything is integrated into the system, so with the simpl