Take this suede leather sportscoat for instance:

The devil is in the details, such as the belted back with two small pleats above it and buttons:

And the 1940s-style tag as well as the silver/gray rayon lining:

Or the Art Deco plastic buttons:

Happily, the Fall/Winter 1944-'45 copy of the Sears, Roebuck catalog
shows an incredibly similar suede leather jacket (sans belted back):

Now, what to wear with such an unusual vintage jacket?
How about something casual like a flannel button-down shirt,
vintage Stratoliner fedora, jeans and vintage sunglasses?

My first vintage leather jacket.