Why does Goku decide to wear different clothes when he faces Uub?

As you can see in the image, at the end of the Buu saga, if memory serves, 10 years later, Goku is seen wearing other clothes that are not at all what he usually wears, I mean his Orange Gi, why? I know that this happens at the end of Z, however, I have read that Dragon Ball Super Hero (Where Beast Gohan VS CELL Max appears) is a year before the battle with Uub, so will we see Goku wearing those same clothes and leading to the end of Super? (Sorry if I may be wrong in my reasoning)

As you can see in the image, at the end of the Buu saga, if memory serves, 10 years later, Goku is seen wearing other clothes that are not at all what he usually wears, I mean his Orange Gi, why? I know that this happens at the end of Z, however, I have read that Dragon Ball Super Hero (Where Beast Gohan VS CELL Max appears) is a year before the battle with Uub, so will we see Goku wearing those same clothes and leading to the end of Super? (Sorry if I may be wrong in my reasoning)