Abstract: A disposable receiving bag comprising front and rear walls sealed to another along the rim and provided with an inlet opening wherein the receiving bag is provided with a cover of a porous sheet material covering one or both surfaces thereof and wherein the cover is secured to the wall or walls of the receiving bag by welding along the rim and in discrete locations over the surface of the cover shows improved performance with respect to easiness to clean without folding and tearing and improved properties with respect to venting of humidity in order to prevent skin problems.