Improvement type insulated bag

The utility model discloses an improvement type insulated bag, including the insulated bag body and handle, the insulated bag body is three layer construction skin, middle level and inlayer, outer and middle level forms a heat sustaining space, it is cotton that a heat sustaining space packs compound pearl, the inlayer forms the 2nd heat sustaining space with the middle level, the 2nd heat sustaining space packs the felt, the handle is even as an organic whole with the backup pad that sets up at insulated bag body opening part, be provided with sealing device in handle and the backup pad, this insulated bag adopts two -layer heat sustaining space, reduces the outside diffusion of temperature in the insulated bag step by step to the bag sets up the plastic -aluminum membrane outside, comes the outside heat of reflection, packs compound pearl cotton and felt respectively simultaneously in two heat sustaining space, utilizes both characteristics that keeps warm, improves the heat preservation characteristic of t