Abstract: A vehicle seat (1), in particular a motor vehicle seat, with a seat substructure (200) which, as a supporting structure, has a seat substructure structure (210) of shell-type design, a backrest (100) which, as a supporting structure, has a backrest structure (110), and at least one fitting (10) which connects the seat substructure structure (210) to the backrest structure (110). The fitting (10) has a fitting upper part (20), fastened to the backrest structure (110), and a fitting lower part (30) fastened to the seat substructure structure (210). The fitting upper part (20), excluding additional connecting elements, is arranged in a form-fitting manner in a depression (118) in the backrest structure (110) and is connected in an integrally bonded manner to the backrest structure (110) by an adhesive (50).

Abstract: A backrest (100) for a vehicle seat (1) includes a monocoque supporting backrest structure (110), wherein at least the rear side of the backrest structure (110) is covered by a design shell (130). The backrest structure (110) is provided with an opening (113) which is laterally delimited by two lateral parts (111) of the backrest structure (110). The width of the opening is at least 50% of the maximum width of the backrest structure (110). A vehicle seat (1), more particularly a sports vehicle seat, includes such a backrest (100).