This Medicool Insulin Protector Case safely cools and protects your insulin. The removable, re-freezable cooler pack keeps insulin potent for up to 12 hours. The case comes complete with two re-freezable cooler packs, one for use and one back-up. It also can be used to protect insulin from freezing. The exterior shell is crafted Dupont Cordura Plus material and is hand washable. The case also provides protective pockets for cleaning swaps and syringes.