An installation for the retention of children on rear seats in motor vehicles with a chest belt and a lower body belt, in which the chest belt is connected with two belt-bands which are arranged extending behind the child over a backrest of the seat and, on the one hand, form the lower body belt by means of their end sections that are deflected in the corner area of the seat surface and backrest while, on the other, they cooperate by way of one or more energy absorption members with anchoring means at fixed vehicle parts.