I love the the aqua pouch. I think I have 6 for testing various layouts of kits and methods of carry and have their aqua pouch plus kit as well - didn't test out the coffee filter/pre-filter support sheath combo yet.

Although they don't recommend it, you can fold it twice (from top to bottom, then widthwise and keep the zipper part on the outside of the fold) and its just a tad bigger then the DR PSK. I've had one of these pouches folded like I mentioned for about 6 months and test it about once every few months... Holding up good.

Kris