Pro tip- line your cooler with Reflectix, bottom and sides. Keep a double layer on top to loosely fit over your ice and cold items. You’ll be amazed at how well it works…with any cooler.
Seen that read it almost doubles ice retention in low cost chests.
Someone above mentioned putting a mat under the chest to keep cold from escaping into the ground. Yep, I keep a floor mat, something from Costco a few y ears back, in the truck in case of breakdowns on dirt/gravel/nasty scheidt, even on pavement. That goes under the chest when I get to camp. The top gets more insulating material, old sleeping bag, wool blanket, covered by a tarp.
And block ice and especially frozen jugs of water (grow up in a desert and you learn about emergency supplies of water). Dry ice for really long trips.
That reflectix stuff looks appropriate too.
