If you're heading out for a day at the beach or park with plenty of snacks in tow, the last thing you want is them to overheat. Enter this cooler-ready ice pack. The large pack keeps coolers under 32 degrees for days at a time. Stash one in your ice chest and everything inside will stay frozen for up to 50% longer. Plus, you can easily refreeze it in six to eight hours for a lifetime of uses — meaning you'll never have to drink a cold beer again.