what kind of "label" or "fashion" would you call nick and nora in that movie?

what kind of "label" or "fashion" would you call nick and nora in that movie?

i really love the way nick and nora dress in the movie nick and noras infinate playlist and im trying to find clothes online like that.. what would you call their look? they are so chill and straight edge i love it. i love how laid back they are.. any ideas