fabric 20 as shown here merely sectionwise to attain higher strength in the wall of the airbag 2 in the regions 8 and 9 as cited above regions of the airbag offering greater resistance are created in accordance with the invention fig2 in the regions 28 and 29 by employing a yarn vs in the cited regions in the weft direction s and which as compared to weft threads used in other regions of the fabric 20 has a 25 higher dtex for instance this so called reinforcement weft yarn vs is picked for example with no change in the weft set into the fabric 20 so that in the regions 28 and 29 a corresponding increase in the fabric mass and thus the desired fabric strength is achieved this inventive approach attains on the one hand the desired reinforcement where it is wanted within a ply of the airbag but on the other hand the reinforcement effect is also achieved elsewhere in the airbag where not required this may result in the stiffness of the airbag as well as the pack volume of airbag being unfavorable in some assembly conditions this situation can be improved by selecting in the reinforcement.