Man, this is the coolest (pun intended) invention ever! Double-walled, insulated, bomber construction dry bag cooler and cooler backpacks. The IceMule Cooler is now a mainstay on any road trip, paddle trip or work trip I take. It has replaced my hard shelled coolers. Works just as well or better. Easy to drain and easy to keep my food above the iceline (which never works in a hard cooler). Because every cubic foot in my vehicle counts, I can store this cooler in way more versatile places. Of course, the best part is how easily it stows on my SUP or in a kayak/canoe. Way easier to secure.