This is a SUPER rare 90s vintage Warner Bros. Crew Jacket. 

This specific jacket was given to an Animation Assistant while working on the original Space Jam movie. He also worked on Looney Tunes Back in Action, as well as the TV Show Pinky and the Brain, among many other shows and movies.

You will see this jacket on rare occasion, however this version that has the back embroidered as well is even more rare. 

Great Condition Aside from one small rip on back of collar. See Photos