The present disclosure relates to a child seat for rearward-facing use in a vehicle. It comprises a back portion and a squab portion. The back portion comprises a force-receiving assembly, located at the shoulder region, which is of a more rigid material than a main portion of the back portion, the main portion being of a light-weight material. The force-receiving assembly comprises a first portion arranged at the first side of the back portion providing an anchor point for a shoulder portion of a child safety belt arrangement. The force-receiving assembly further comprises a second portion arranged at the second side of the back portion providing an anchor point for a child seat fixation means. The disclosure further relates to a child seat arrangement, a kit of parts and a vehicle comprising the child seat.