Vee vehr onlee Lederhosen and ze Dirndls!
Ok..so not really. German teenagers watch a lot of American television so they get to see a lot of the same fashion that Americans do. They listen to many of the same bands/recording artists and watch many American movies. On top of that, clothing companies want to sell their product to as many customers as possible.
So to answer your question, German teenagers wear the same kinds of clothes as teenagers in most industrialized countries! Don’t believe me? Try comparing a few clothing sites in America or the UK and then look at the German version. You’ll find the clothes are the same or close enough.
If you need more information on German clothing check out: