Viaggio Flex 120 is recommended for children: 40 to 120 lbs, and up to 63 inches. Headrest ,backrest, side protections, and the seats are adjustable all independent of each other. Integrated rigid LATCH allows for easy installation and stability. The rigid LATCH can also tuck into seat when not in use. Blind Locking System prevents seat from being accidentally released by another passenger. The backrest of the Viaggio Flex 120 can fold down onto itself when not in use, even while attached via rigid LATCH. The reclining seat can be set in five different positions, regardless of the postion of the car’s backrest, so that children can be perfectly relaxed. Adjustable side impact protection reduces the forces acting on the child’s neck and head in the event of a side impact. The seat is soft and anatomically-shaped with expanded foam cover, to ensure optimal comfort. Two practical cup holders fold into the base of the car seat.