I have a neuralgia condition in my pelvic floor that has me in burning pain 24/7. Ice is the best and usually only remedy that really stops the pain.Therefore, my world revolves around ice packs. Having enough of them, making sure at least one is always frozen, constantly dealing with leaks from wear and tear as I must sit on them continuously....I finally realized this calls for more than just the hot/cold packs I was buying at my local drugstore.After trying several types and brands, I finally tried Coldest last week. I just bought my second pack today. I'm convinced.These packs may need a full 2 hours to freeze starting from room temperature. But they definitely freeze fast and their large size seems to help them stay colder longer. A lot colder, a lot longer. Perhaps 50% longer than the standard packs I've been using.That extra time means less time spent getting up, changing packs, re-freezing etc. Since the packs are usually still pretty cold when I put them back in the freezer, they don't need as much time to get ice cold again. An hour perhaps. This all adds up to longer lasting cold per pack in less time. With a couple more Coldest packs, I expect it will save me as much as an hour or more a day making trips to the freezer.I'm planning to purchase 3 Coldest packs total to replace the 5 standard packs in my freezer now. And I expect even with 2 less packs I will have both more instant and consistent access to the 24/7 cold therapy I need.Another great thing about these packs is that even when ice cold straight from the freezer, they are still flexible and mold just way I need them to. With standard packs, I usually have to wait 15-20 minutes for the packs to soften enough to mold and finallly apply. Then I'm lucky to get 20 minutes of numbing relief before they become room temperature again.With Coldest, I can use them straight from the freezer, as needed - no waiting! And a single pack stays cold enough to maintain numbness for well past 30 minutes. (I actually will time them at some point in the future to compare and update here with the results)I never thought I'd be writing so enthusiastically about an ice pack. But here we are. And Coldest deserves to be raved about. You can tell they put a lot of love into this quality product. If you really need the best ice pack ever, congratulations you just found it.