Confessions of a Sugar Palm swinger - The Daily Revolution: ...
... this could go on forever. The men were always sharp-dressed, some in zoot suits,
or swing suits, and others in 50's greaser attire. The ladies invariably wore ...
dailyrevolution.org/thursday/sugarpalm.html - 8k - Cached - Similar pages

hateeverything.com -
... Somewhere out there, there has to be closets full of flannel grunge shirts, swing
suits, No Fear accessories, and those idiotic MC Hammer-esque rave pants. In ...
www.hateeverything.com/features/rants/prostest.html - 15k - Cached - Similar pages

I think it is an ionvention that's bets translated according to the present-day conventions: use the first part that is untranslateable, add a hyphen, and then add something descripive from the target language. That's "Swing-Kleidung".
Pure invention and no hits on Google.

Maybe that plays in BRD.