Young men, it seems, are proud of their designer underpants and like wearing so-called "sag" trousers that let the world see them.
Now young men wearing sag trousers at Bjørnsletta School in Oslo face getting some unflattering comments from school officials, like: "Don't you know how to pull up your pants?" Principal Siv Lande has had enough of the revealing dress popular among her young charges.
"We're not being prudish," Lande insisted to newspaper Aften this week. "This is all about preparing students for adult life and their future work lives. People at work need to dress properly.
"If one of our teachers came to work wearing trousers halfway down his backside, I would have reacted as well. I think the students should have the same rules."
That now means that underwear shouldn't be visible, while bare stomachs and low-cut tops for girls are out. Jackets and coats must be hung in closets while students are indoors, and caps aren't to be worn indoors either.
Some students, predictably enough, have reacted negatively to the new dress code they encounted when school started last week. "I think the new clothing rules are stupid," said Bendik Stuevold Eger, one of the many young men who prefer showing off their underpants. He admitted, however, that really low sag trousers "where you can see between their legs" is going too far.
Young women at the school, meanwhile, note that bare stomachs are out of style now. Some rather enjoy showing off their bustlines, however, in low-cut tight-fitting tops. "It's just fashion, and our way of dressing," said 14-year-old Ingvild Peersen. "And there's a difference between school and work."