Randomly throwing darts at forum subjects, since I can’t backtrack to those Birthday Cooler bags (w/cat facing cupcake?), during a Woot!-off maybe? I am somewhat surprised to be impressed with that bag - I’ve found a one-gallon bottle of water, initially frozen-solid ice, will preserve a frozen core in this not-so-thermally-thick bag for almost three days in an ambient average temperature of 85°…