The podium jackets that are to be used by U.S. medalists are reflective and supposedly are going to "light up" when the camera flashes go off. They do but the image is awful. Every fingerprint that is invisible becomes quite visible when you look at the pictures. The athletes will have to wear brand new jackets handled with gloves or they are going to look like they have dirt all over them.
Take a picture of the jacket at the Nike store and see what I mean. It's brutal.