Bag for wrapping food items, in particular breed, rolls, and snacks, made of a composite material having at least one first layer made of a material containing cellulose and a second layer made of plastic; the first layer has a specific weight of 15 to 50 g/m², preferably from 15 to 40 g/m², and the second layer is from 6 to 20 m thick. The composite material is perforated, and the ratio of open surface area to total surface area of the composite material is between 1/50 and 1/250, and the first layer made of material containing cellulose is interrupted in at least one area for the purpose of inclusion of a window. The window is perforated.