Took the ice mule for its maiden trip. Filled with a dozen frozen sausage links and 6 tubes of breakfast sausage for our annual week long fishing trip in Canada. Everything stayed frozen until we reached our destination after 36 hours of travel. Put a couple frozen ice packs in it as well to ensure evrything would stay frozen during travel. No issue at all. 
Took in the boat everyday filled with water and misc drinks to have while on water. Everything stayed super cold. 
Also, while on the dock I had several other fisherman ask about the “boat bag cooler”. I had to walk the thru all the features of the Icemule, afterwards they all were going to buy one for there travels. 
Next on my list is the icemule Pro in large camo patter for dove hunting in Texas.
Thanks again
CHAD L