The Bad News Bears

 

In the original movie from 1976 Tatum O'Neal played the gifted baseball girl Amanda. There is a very short sequence showing her sitting on the back of a motor bike, maybe wearing a denim vest. But I'm not sure about that, it's filmed too close, too much covert and too short to be sure.

Later there was also a tv-show around 1979-1980 with Tricia Cast playing Amanda. And one episode showing her wearing a dark denim vest at a party. 

Brutus Denim Waistcoat

 

Some more vintage denim waistcoats from the 1970s made by Brutus Jeans. Found in the WWW

Falmer denim waistcoat

 

Women wearing denim waitcoats by Falmer Jeanius. Found in the WWW

Sylvia Hauser

 

Drag race driver Sylvia Hauser with denim waistcoats in the 1970s. Found in the WWW

Mona Freiberg

 

Bavarian actress Mona Freiberg in the German tv-series Eichholz und Söhne from 1978, wearing a dark denim outfit with jeans and vest.

Po rozvodu

 

Czech actress Eva Režnarová with blue jean vest in the Czech tv-movie Po rozvodu from 1981