I've used various fanny packs and one which held a "hard case" which I could get cold in the refrig. to keep my bottles of insulin. When I got on the pump, the first insulin was good for hot weather (Humalog). Four years later when I realized I couldn't lose weight on it, I tried the second type of insulin, also good in hot weather (Novolog), but I got very bad side effects!!! Then I went to a new one, Apidra. Works very well for me with one side effect I can live with, but it is not good in above 85 degree weather! So my doctor told me to get a fanny pack with blue ice. Medtronic Minimed, where I got my pump has a pack which will work for this and for the other supplies. However, my Mom saw an ad for FRIOCooling Cases (FrioInsulinCoolingCase.com) and I checked into that. The cases were developed by a doctor in the U.K. and are made of crystals which are activated by water (room temp). After they expand (takes only 5-15 minutes depending on size of case), they keep insulin at 79 degrees for two days or more!! Great for emergencies!!! I bought two cases. One for pump only, and a larger one for all supplies. I used the large one to go to Disneyland and Adventure Park just this month and to teach P.E.! Worked great!! My only complaint are the straps. Needs some adjustments. I'm still thinking of looking into Medtronic Minimed because I think they will make a sturdier type and I want to compare. I have a lot of things besides diabetes to carry also---cell phone, hearing aid remote, camera, etc.!!!!! Good luck!!