HEROLILY Reusable (HDR) Heat & Ice Sheets Packs, Extreme Freeze Cooler, for Food Hiking Camping Outdoor, 16" x 11" 4 Ply Re-freezable Non Toxic Leakproof Refrigerant Pack

After using these quite a bit with my UTV I though perhas it was my cooler and being outside in the heat so I decided to conduct a few tests to see what was happening and these ICE sheets FAILED miserably. I used the ice sheets in multiple coolers, empty, with food and drinks, and with loose ice. These sheets did not last more than a few hours. I tested with the coolers outside (it was cold one day), inside (high 60s) and outside (70s) with the same outcome that they did not last more than a few hours. I would not recommend these sheets. I did contact the seller and they offered to replace (sounds like this is not how they were supposed to perform) but atlas they never sent any. I WOULD NOT RECOMMEND.

Love Love Love these!!!!! I drove from Maryland to Florida over 3 days and these actually stayed frozen the entire time!!!!! I thought I’d need to bring them in the hotel each night to refreeze but NOPE they were just as solid upon arrival in Florida as they were when I put them in the cooler in Maryland. I HIGHLY RECOMMEND these!!!!

Love them . I vacum bag them so they don't leak that slimmy stuff. Set 4 around your frozen foods in your insulated bag and your stuff will stay frozen for at least 8 hours. Heavy with 4 so I just use 2 for the short trips of 2 hours to the grocery store. I'll never use ice or those cold packs. Dip in water squeeze and freeze.Voila!!

I bought this to keep frozen meat “frozen” for a flight to spokane from Chicago. I use it every year and those in a freezer bag with Vienna, beefs, White Castle and frozen yellow perch fillets arrive just as frozen as when packed. On return trip moms homemade goodies remaine froze and intact. I gues they are airline approved. Never was told not to use them but yes my luggage has a tag it was examined. I’ve always checked the “frozen bag”

Cut it up into a size that good for a lunch box, wrap it up in some wax paper to prevent frostbite or whatever from holding it, put the wrapped ice-pack in a slip-lock baggies, freeze it overnight, and you will have a pretty good ice-pack.It's not like normal ice-packs, and I don't necessarily trust it from not leaking, but from within a baggie, it works great.It really does get below freezing. I put it in a cooler and some of the water turned into ice after a couple hours. But it depends on how cold your freezer can get.

hmmm.. really impressed with these! They stay frozen all day in an el cheapo soft-sided bag type cooler. I live in Charleston SC - 1 sheet of these in the cooler - keeps our munchies cold all day at the beach. Recommend and will buy these again when these need replacing..... which I expect should be no time soon.

Holds temps really well, but the outer packaging isn't durable enough to use more than a couple dozen times. When the cover of a cell breaks, I slice it out and place it in a ziplock bag. Still works just as well... but it's in a ziplock bag. Almost half of mine are currently in ziplocks.I still love the product, though and will probably buy again when I've destroyed my current supply.

satisfied, hold cold better than techni ice. large water holding cells but all cuts and fits fine on multiple sized coolers. Will repurchase when time come