Oh, and for those considering horizontal pockets (should you make something like this), I was going to use drawstring or bungie, but I found it unnecessary due to the rubber like PU coating on this material. Stuff doesn't want to fall out when it's in the pockets. If you make horizontal pockets out of something more slippery like Sil, I would recommend angling them and/or having some sort of closure to keep stuff from dropping out and bopping you in the head. :D