A packaging assembly for lightweight containers that includes a secondary packaging for gathering and holding a plurality of individual primary lightweight containers. The secondary packaging includes two layers of thermoplastic shrinkable film enclosing the lightweight containers, with the layers being connected to one another at least partially in the circumference of the secondary packaging. Each of the primary lightweight containers has a container body and a container neck with a neck opening. The lightweight containers are disposed in the secondary packaging in rows forming one single, substantially plane layer, with all containers being oriented with their longitudinal axis (L) forming an angle (α) with the plane of the packaging assembly that is between 0 and 45°. Also, the neck of each container is oriented so as to be at least partially inserted between the bodies of the containers disposed in an adjacent row, such that the necks of the containers in the peripheral rows are turned towards the inside of the layer.