So, I am going to do a head to head test of the Ozark Trail 26 qt. cooler vs. my Swiss made NATO HMMWV insulated cooler (13 liter with 2 inside stackable covered containers) with a locktite, leakproof lid and folding carry handle, made out of a rubber/fiberglass exterior. The interior is fully lined and insulated and keeps ice and items cold for days. It measures approximately 17" tall x 14" wide x 7" deep (about the same size of a jerry can) and fits in a standard Jerry can mount. I have to say, this is a very cool, practical, space-saving cooler for a couple days on the trail. It's also wrapped with a US miltary insulated bag that I got from Coleman's Military Surplus. I also have to say, out of my cooler "collection", this one is my favorite!
https://colemans.com/shop/containers/u-s-g-i-portable-insulated-container/
https://colemans.com/shop/containers/u-s-g-i-portable-insulated-container/