No, No, No...no peeing in the suit...yuck....now that being said, I had to pee so badly during a race last June, I thought I was gonna die. I held it for 2 1/2 hours. If I was not wearing a tri-suit, I probably would have hit the woods on the run. The truisuit I had on zipped up the back and even with a tether, I could not zip it myself. I have since purchased a front zip.