It's about a mouse and he wears a poorboy hat and a red shirt. I don't really remember many details about the movie, I just remember loving it and am really stuck on the name.

I think it may have had 'adventure' and maybe the name of the mouse in the title of the movie.

I figured it out... it's An American Tail

That's what my answer was going to be there's also the follow up it's called feifel goes west my son was just watching an american tail today