Multiwall cooler bag

摘要: A multiwall cooler bag is formed by gusseted inner and outer tubes, the tube being made of kraft paper having its lower end circumferentially bonded to tube, comprising an ply plastic material heat sealed closure at paper, with a strip reinforcing extending length secured back front walls tube. The wall has flap while upper overlapping when completely closed. portion free permit independent closing before An aperture in strip-reinforcing tongue edge, tongues proportioned arranged for bending through apertures upwardly against cooperate provide reinforced grip.