one of my favorite german shops is Schwittenberg from Munich. supplying both men and women, they stock brands like Acne, Maison Margiela, Dries Van Noten, Stephan Schneider and many more. for a little insight head over to amazed and check out the feature (in german only) they did on Schwittenberg. if you're not around Munich, they also have a great web store.
pic source: amazed