This Kool Down Kit has everything you need in one package. Includes Kold Vest with 2 sets of 10 inserts, Kold Kollar, Insulated Bag, and 10 Extra Inserts. It provides much needed relief from the sun and heat. Dura Kold products are made so they will not cause frostbite or skin burn so you can get relief without worry. All inserts are filled with purified water and a food-grade freezing agent.