it's not comfortable to have anything in it while i'm running; i'd rather have a pocket in the back. and beyond that, knowing some of the history behind it is shocking. there's something about water that strikes a chord all over the world. i suspect it is to manage the “solar city” part of the company as quite a few folks in our neighborhood have solar city panels on our roofs. but if you prefer your waste recycled, you may need to go about it in a slightly different manner. 