All jokes aside, this can get serious if you are planning on "wearing it alot". Well for every trooper out there, I recommend finding out a way to install some sort of zipper. underneath your cod and your backside in case of an emergency. Holding your urine can result in painful kidney stones. You might have to surgically remove them, or if you are lucky, or rather unlucky, you might be able to urinate them out. Now the other end is even worse. If you hold any fecal matter in, it will start to harden and when you do get to the bathroom after 5+ hours of holding it in, you are risking thrashing your colon, in which a VERY painful hemoroid could occur. Hemoroids are nasty and will actually prevent you from going number two unless you get it surgically fixed. Just a tiny scratch can do that. I wont go into further detail unless somebody wants me to, in that case pm me. But holding your belongings in any way can harm you. Water is good when you sweat, because you need to replace the water in your body and electrolytes.
I find a 50/50 mix of gatorade to water does the trick just well. It isnt for the taste necesarily, but for the re-supplying of the needed sugars, electrolytes and h2o your body needs. So eat, drink, and drink lots, because collapsing in the middle of a con will be a little embaressing dont ya think?