Cool Coolers Kids Lunch Box Ice Packs

The description and some reviews raved about these “staying cold for HOURS”. These stay cold for about 4 hours, MAX. We leave the house at 7:30am. I pack lunch between 6:30-7am. The longest these have stayed cold enough to keep food cold was until 11am. My child complains her food is “warm” sometimes, so I tested them. I took one in my own lunch to work every day for a week. One day it had thawed to barely cold by 10am. Another, 10:30. The other 3 days it was still cold-ish at 11am. I think part of it depends on what is packed with it. At school, lunch was at 10:45am so that was fine, but at day camp in the summer they eat at Noon. I tried using 2-3 of them. Result is the same. They were a decent price. Of course we love all the different designs, and it’s great that they’re stackable to fit in the freezer. The thickness is great if you’re putting it with a bento box inside of a lunch box or pressed for freezer space, but performance is the most important factor and that is mediocre. I have not noticed any leaks. Back to the big, clunky, ugly Igloo ice packs that the labels peels off and gets on everything until I find something else, I guess.