One of the BEST performing coolers on the market today! Engel is a top of the line manufacturer of performance coolers. An Engel cooler is not just an improvement on the old models, but a brand new concept, designed from the ground up to re-define what an ice chest could be. Take a close look at what makes an Engel DeepBlue ice chest the number one rated ice chest in the country. Rotationally-molded of seamless polyethylene, it’s tough enough to stand up to a hungry Grizzly bear. A full two-inches of dense polyurethane foam is injected top, bottom and sides, to provide 8-10 days of cold-keeping capability.