The Porsche Junior Seat i-Size is suitable for children between 100 cm and 150 cm. The seat can be fastened in place using either the vehicle seat belt or the ISOFIX/ISOFIT system. The Porsche Junior Seat i-Size must be used as a booster seat without backrest if the child is between 135 cm and 150 cm in height. Secure the booster seat using the 3-point belt or the ISOFIX system in combination with the 3-point belt. Porsche recommends use with the backrest as this offers optimum protection for the child in the event of a side impact. The Porsche Junior Seat i-Size was developed by Porsche in a unique design and features "PORSCHE" logos on both sides.