MUNICH — Hip-hop blared from oversize speakers. Half-finished beer glasses teetered precariously along the bar, and a scrum of teenage bodies writhed on the dimly lit dance floor. It was a regular night out in hip urban Munich.

And everyone was in 19th-century Alpine peasant dress.

In Bavaria in 2018, tradition is trendy and custom is cool. Bavarian teenagers, who once wore jeans and T-shirts in Oktoberfest season, are going clubbing in dirndl and lederhosen.

“Ten years ago, we rarely saw a dirndl in the disco,” said Dierk Beyer, a manager at Neuraum, a popular nightclub near the site of the Oktoberfest. “Now it’s normal.”