So, depending on how long you’re planning to be out for, a larger capacity cool bag that you can fill with more ice will keep contents cold for longer.

The trunk tends to be hotter since it's away from the air conditioning, and that's not the last thing you want for your frozen items. Before taking off, we noted the overall quality and appearance of the coolers, including any extra features like storage compartments. You’ll also want to make sure the ice pack fits in your freezer space without too much hassle and reorganizing. The boxy external structure of this backpack is self -supporting, covered with an impressively durable TPU fabric.When using fresh ice, the minimum suggested amount of ice to use is a 50/50 split, though it truly depends on what’s inside and how and where you’ll be using the cooler.

Reflective window blinds can be used on hot days to reflect sunshine and heat, keeping your automobile cooler. The 600-denier water-resistant canvas material was extra durable, surviving our toss tests with top scores, but it didn’t perform as well as we wanted during the leak test. Overall, we think this is a reliable and superb option that can take the heat and ensure that foods and beverages stay icy cold, even for a weekend camping trip.IceMule is known for its high-quality materials, and this bag held up against our durability tests, leading us to believe it’s in it for the long haul. The colder the contents and waterproof cool bag are at the start, the more likely they are to stay cold for longer.