CLEAN-CUT young men have been going to F.S.C. Barber in the West Village and asking for the same haircut: buzzed on the sides, longer on top and slicked back with a dab of pomade. You could call it a modified McSqueeb, a J. Edgar Hoover or maybe a Jimmy Darmody, after the character in “Boardwalk Empire.”

But a lot of them just ask for a Hitler Youth, said Sam Buffa, a founding partner of the barbershop. “I was trying to not use that” term, he added.

The old-school coif has become a go-to haircut not just for Web designers in heritage-brand clothing, but for fashion designers and D.J.’s in the style capitals of Europe.

“I think it goes along with a newly restored romance for tailoring, the cut and craftsmanship you see with this current heritage trend,” said Scott Schuman, a photographer who has captured men with the hairstyle in London, Paris and New York for his blog, the Sartorialist.