So now, of course, I need to figure out how to make one. I'll share a tutorial as soon as I get it worked out. It has pockets all around, and has batting withing all the layers as well as the carrying handle. The top is elasticised.
But I thought I would post this photo first, just in case there is already a tutorial out there somewhere, that someone can link me to, in order to spare me the work of trying to create one on my own! tee hee!
However, I would make one change for certain -- the bottle inside the carrier is 710 mL, but I would want it shortened in order to carry a 500 mL bottle.