BELOW ZERO Reusable Ice Packs for Lunch Box, Freezer Cooler Bags and Camping – Colder and Longer Lasting Technology, 8+ Hour Cooling Ice Gel Pack - Size 7.5"x6.5" (Pre Filled/Sealed 5 Pack)

I drove for 2.5 days with frozen food in an ice chest and used these ice packs. The food stayed frozen solid the whole time, these ice packs last a looonnnggg time, however I did re freeze them overnight 1 time but still they stayed rock hard. Good purchase and next time I’ll buy the larger size

I now have 2 sets of these ice packs. They stay frozen for hours unlike regular ice. I use them for travel & for outdoor activities. They stay icy for nearly 12 hours. Great product! I highly recommend.

Becomes a block of ice in under 3 hours and stays frozen for at least 6 hours. Have re-used several times with no drop in quality. Zero leakage. Highly recommend!

I will say these do work well. But don’t stay cold for a full 14 hr shift even with the lunch bag insulated and closed. So be aware of that. But they work for about 8 hrs or so.

These have been amazing keeps my lunch cold way past my normal work day