VEHICLE OCCUPANT RESTRAINING SYSTEM

A vehicle occupant restraint system () comprises a vehicle seat () including a backrest () with a seat back surface (), wherein the seat back surface () is provided for a vehicle occupant seated in the vehicle seat () to lean there against, and comprises an airbag module () integrated in the vehicle seat () which includes an airbag () being L-shaped in a horizontal section plane. The airbag () has a fillable cushioning portion () forming a first leg of the L which is positioned along a seat longitudinal direction (L) spaced from the seat back surface (), and a fillable connecting portion () forming a second leg of the L which connects the cushioning portion () to the vehicle seat (). The airbag () includes at least one stabilizing element () which counteracts a force (F) acting on the cushioning portion () and being directed away from the seat back surface (), if the vehicle occupant impacts a baffle (), so as to stabilize the cushioning portion () relative to the connecting portion ().