A few months back, I purchased the 52 quart ultra-light cooler. The big reason I chose it was the size. It just barely fits on the front of my Five Wide and allows me to open it, and I don't need to remove it. I compared sizes of many different ones, and it also holds as much as it says. I also found a cover for it because rocks may tend to hit it while traveling. It has a divider that can be frozen, so with one side filled with ice and water, the other side for food (there is a basket), it has enough space for my four day trips or more. They have various colors, wish I had the Christmas red and green!