The invention relates to a pouch for cooling an insulin pump, which pouch comprises: - a bottom wall and - a standing peripheral wall along the bottom wall for enclosing an insulin pump and wherein the upper edge of the peripheral wall forms an insertion opening for inserting the insulin pump wherein at least two opposite wall parts of the peripheral wall are provided with hydrogel-filled compartments and wherein the wall parts are water-permeable for the purpose of bringing the hydrogel into contact with water.
