A plastic bag having a bag base and an opposite bag opening, comprising a front wall and a rear wall, each having a first side edge (10, 10'), an opposite second side edge (12, 12'), an opening edge (14, 14') and a bottom edge (16, 16'), wherein the front wall and the rear wall are, in the region of the first (10, 10') and second (12, 12') side edges and the bottom edges (16, 16') thereof, interconnected at least in portions, in particular by means of welding, so as to form opposite first and second bag edges and a bag bottom edge, wherein the front wall and/or the rear wall has/have, on the inside, at least one plastic film layer (24, 24'), which extends from or from a point spaced apart from the first side edge (10, 10') towards or as far as the opposite second side edge (12, 12') and from the bottom edge (16, 16') or from a point spaced apart from the bottom edge (16, 16') towards or as far as the opening edge (14, 14'), wherein the plastic film layer (24, 24') of the front wall and/or the rear wall is connected to the inside of the front wall or rear wall at least in portions by means of at least two, in particular three or four, weld or adhesive areas (26, 26', 28, 28'), in particular weld seams, which are spaced apart from one another, in particular extend substantially in parallel and extend from a point spaced apart from the bottom edge (16, 16') towards or as far as the opening edge (14, 14'), so as to form internal bag inserts (30, 32, 34), which are open towards the bag opening and are each configured and adapted to receive one or more beverage bottles, characterized in that the front wall is multi-layered and that the plastic film layer is connected only to the inside layer of the multi-layered front wall by the weld or adhesive areas (54, 26; 26, 28; 28, 56) and/or in that the rear wall is multi-layered and that the plastic film layer is connected only to the inside layer of the multi-layered rear wall by the weld or adhesive areas (54', 26'; 26', 28'; 28', 56'). a front wall and a rear wall, each having a first side edge (10, 10'), an opposite second side edge (12, 12'), an opening edge (14, 14') and a bottom edge (16, 16'), wherein the front wall and the rear wall are, in the region of the first (10, 10') and second (12, 12') side edges and the bottom edges (16, 16') thereof, interconnected at least in portions, in particular by means of welding, so as to form opposite first and second bag edges and a bag bottom edge, wherein the front wall and/or the rear wall has/have, on the inside, at least one plastic film layer (24, 24'), which extends from or from a point spaced apart from the first side edge (10, 10') towards or as far as the opposite second side edge (12, 12') and from the bottom edge (16, 16') or from a point spaced apart from the bottom edge (16, 16') towards or as far as the opening edge (14, 14'), wherein the plastic film layer (24, 24') of the front wall and/or the rear wall is connected to the inside of the front wall or rear wall at least in portions by means of at least two, in particular three or four, weld or adhesive areas (26, 26', 28, 28'), in particular weld seams, which are spaced apart from one another, in particular extend substantially in parallel and extend from a point spaced apart from the bottom edge (16, 16') towards or as far as the opening edge (14, 14'), so as to form internal bag inserts (30, 32, 34), which are open towards the bag opening and are each configured and adapted to receive one or more beverage bottles, characterized in that the front wall is multi-layered and that the plastic film layer is connected only to the inside layer of the multi-layered front wall by the weld or adhesive areas (54, 26; 26, 28; 28, 56) and/or in that the rear wall is multi-layered and that the plastic film layer is connected only to the inside layer of the multi-layered rear wall by the weld or adhesive areas (54', 26'; 26', 28'; 28', 56').