SIMPLY ULTRA LIGHTThe user friendly and extremely light Isis car seat is especially suitable for frequent car changes, thus also being ideal as a spare seat. A double-walled safety system provides additional safety by optimally absorbing the forces triggered in a collision.2 SEATS IN 1After removing the safety cushion and the base at the age of approximately 3 years (15 kg), the child safety seat converts into the award-winning CYBEX Free-fix (Gr.II/III), offering a u…