Ice box for camping and picnics with a volume of 26L. Seal design layer by layer helps keep cold effectively. Specifically, with 3 layers with the innermost layer using healthy PP plastic, the middle layer using PU insulation, the outermost layer is PP plastic, with a body thickness of 35mm and a thickness of 30mm insulation to help improve efficiency. The insulated fruit of the barrel, the cooler can keep cold for up to 3-4 days depending on the conditions of use.