I wonder how customizable Olympic athletes' competition uniforms are. I know they all have to dress the same (that's the point of uniforms), but I wonder if they can be custom-made or altered. I noticed a couple of athletes whose outfits didn't seem to fit them as well or as comfortably as they could, and that doesn't seem to be the ideal situation when competing in the Olympics. I wonder if they can wear their own shoes? I wonder if there are rules about how they wear their hair? I wonder if there are Olympic-wide rules about what team uniforms can be like?