Engel Backpack Coolers features a rugged, tear-resistant 500-denier polyester diamond ripstop outer shell with a waterproof TPE coating for easy cleaning. On the inside, there’s a radiant barrier liner of reflective foil, in addition to an almost 1-inch thick layer of closed-cell foam insulation √¢‚Ǩ‚Äú another exclusive Engel feature you won’t find on other bags. While the insulation effectively minimizes heat transfer to maintain cold inner temperatures, the radiant barrier liner reflects the sun’s long-wave heat radiation to further enhance the Backpack Cooler’s cold-keeping capabilities. Under controlled conditions, the Backpack Cooler will hold ice for up to three days.

Product Features

• Unique feature is the 2 cold storage compartments – one can be dry for sandwiches, while the other can hold ice and drinks.
• Light weight, high performance. Keeps cold for up to 3 days
• 6 Convenient ways to carry… Shoulder strap, oversized grab handles and as a traditional backpack – with adjustable webbing.
• A benefit of the foil inner layer which acts like a space blanket. It reflects the suns heat but it can be used to keep its contents warm – like pizza.
• Features multiple storage compartments on all sides with water resistant zippers.