"Kramer’s old uniform—camp-collar shirts in colorfully printed silk or rayon, sack pants that pull up a little short at the ankle to reveal white socks, clunky-soled shoes, a thin gold chain..."

"... is new again. This summer, the stylish young men I’ve seen around New York have continued their rejection of the once-inescapable skinny pants and check shirts in favor of something a little looser and decidedly more louche."

Writes Amanda Mull in "It Was Only a Matter of Time Before Everyone Started Dressing Like Kramer/It’s the summer of Kramercore" (The Atlantic).

"Years of stretch fabrics that really needed the stretch have given way to breezy textiles and retro short-sleeved knits with a natural slouch, idiosyncratic prints, a lot more color, and maybe a little bit of embroidery. There are fewer sneakers and more loafers. And then there are all those camp collars.... Tired of the sameness and omnipresence of new clothes and nostalgic for a past that many of them don’t remember, young people have plunged themselves into thrifting and vintage resale, hunting for weird or interesting things from the ’90s and early 2000s."

Sounds like a repeat of the hippie movement.

Anyway, I like that word "louche." It's from French, where it means squinting. Squinting! How did a word that meant squinting travel into English and end up meaning whatever it is "louche" is supposed to mean?  Well, according to the OED, in English it means "Oblique, not straightforward. Also, dubious, shifty, disreputable." The oldest appearance in English is from 1819:

1819    Lady Morgan in  Passages from Autobiogr. (1859) 318   There is some~thing louche about him, which does not accord with the abandon of careless, intimate intercourse.

Lady Morgan was probably just using French. Thackeray used the same "something louche about him" format in 1850:

1850    W. M. Thackeray Pendennis II. xxxi. 312   There's something louche regarding him.

Some 20th century uses by very classy writers: 

1905    G. B. Shaw Lett. to Granville Barker (1956) 53   You could play Snobby. I want a slim, louche, servant-girl-bigamist, half-handsome sort of rascal.

1921    A. Huxley Crome Yellow xvii. 182   There had seemed to be something a little louche in the way she had suddenly found herself alone with Ivor.

1945    W. H. Auden Sea & Mirror ii. 46   A quick cold clasp now and then in some louche hovel.

1945    E. Waugh Brideshead Revisited 236   I knew of a louche little bar quite near here.

A quick cold clasp now and then in some louche hovel.... um, yes... but what will you wear? Kramercore?