The cooler itself warms up and then conducts that heat into anything touching the inside walls ... then put the ice cream in.

The Tourit 30-can Cooler ... bag during testing. While visiting a park in 90-degree weather, we found minimal ice meltage, prompting us to use it for transporting delicate frozen items like ice ...

One of my favorite MVPs this season was a portable soft cooler: the Titan by Arctic Zone Deep Freeze 30-Can Ice Wall Backpack Cooler ... everything packed into one bag. The two side pockets ...