A foldable passenger carrier, such as an infant stroller, comprising a carrier frame with a frame body and at least one longitudinal frame element comprising a folding hinge with a locking mechanism in the folding hinge. The carrier further comprises a push-handle which is connected to the upper part of the frame body and comprises a handle adjustment hinge with a locking mechanism. The push-handle is foldable towards the forward part of the frame body at the handle adjustment hinge and the longitudinal frame element is foldable in a direction towards the lower part of the frame body at the folding hinge.