Best insulation You can keep your lunch fresh for hours—even on hot days—with the Packit Freezable Lunch Bag. We tested this budget-friendly lunch box and liked that it can be stored overnight in the ...
Photo: Marki Williams It keeps food cold. In our insulation tests ... intuitive if you regularly walk to work. Will your lunch box sit in a hot car from 7 am to noon? If so, a bigger insulated ...