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 ONEAfter removing the safety cushion and the base at the age of approximately 3 years (15 kg), the seat converts into the award-winning CYBEX Free (Gr.II/III), offering a usability of up …