Hats an jacket were very cool. I was in 3 car clubs in early 1960's, I did shirts for 2 of them!! None at first had the $ to order custom jackets. So I airbrushed custom Club " T "shirts for all that wanted one. I know the T"shirts didn't last very long,like jackets did. But we at least could all be together at the drags" with ID"thing as a cool club.
Here is a shirt worn by a track official and a trophy jacket from Continental Divide Raceway that was located outside of Denver.