Finding an ice chest/cooler to fit behind the seat of a Jeep or pickup was tough. If it was small enough to fit, it was too small for anything but six cans of pop, etc.
JP Cooler of Queen Creek, Arizona, has developed a line of coolers just for us.
JP Coolers come in 28- and 56- quart sizes. They sport a removable seamless liner and even come with a nifty canvas bag that fits inside so you can use the cooler as a gear bag if needed. They're sized to fit perfectly behind Jeep or pickup seats and are very high quality.
We have a 28-quart JP Cooler and it works very well. Most soft coolers don't hold ice for over half a day. Our JP Cooler had ice left in it after two days of 90+ degree trail riding. Queen Creek, Arizona, residents know a bit about scorching hot days, and JP Coolers are designed accordingly.
These coolers are "cool". If you want an innovative cooler that fits in your vehicle and really works, check out www.jpcooler.com.