The bag location is off to the left side of your belly button and equal to it or just below it. They are disposable and at first they give the cleanout kind but quickly upgrade to the zip lock easy to dispose of kind. The size is like 4” long by 2” wide and obviously hangs down but if your shirt covers your waistline then you won’t have a problem. Or if you are wearing a vest, just button the bottom 2 buttons.
My wife is on Leucovorin, 5fu and cpt-11 cocktail and no radiation. Radiation kills everything good or bad and chemo is a little more centralized but not much. Ask your doctor what he thinks.
You are spoiled down there with good weather cause after last winter and living it with shoveling and all it quickly got old.
But if you don’t even know that you are getting the bag then worry about it later. Once you start treatment at least for us it became more of a day-by-day thought process.