Quality and cool. In an industry swimming with hip-hop endorsements and cheap plastic audio devices, Master & Dynamic are a welcome sight. Still waiting to get ears-on with these things, but words on the street is the sound quality is outstanding. But from a straight up visual perspective? It's hard to be on this level. The metal/leather combo is a great look and they're the perfect balance between "retro" and "2014." Ten out of ten.
UPDATE: Got a chance to try out these bad boys in person and wow, is the sound quality good. It has a warm, almost vintage feel, with the kind SOUL missing in a lot of modern competitors. Their comfort is on another level too.