what's featherweight in danish?

I picked up my Featherweight Cardigan again (after an entire year of it snoozing in my knitting basket!).  There's only one thing in the way of any form of quick progress. Now I consider myself to be fairly capable of knitting stockinette without having to keep my eyes on what I'm doing save for looking down here or there to smooth things out but I just can't seem to work on it when B and I are watching this.  I need to read every line of dialogue or some fact or clue vital to the storyline will be missed.  It's also way more fun to watch this show in a dimly lit room since most of it is shot at night - dark, cold, rainy Copenhagen nights   We started watching the American version of this series called "The Killing" but then we found out there was an original Danish version (which later aired on the BBC) and switched over after the second episode - WAY more layers to the story and characters.

With 13 more episodes to go and the fact that we can't wait more than 2 evenings between each one, this sweater's completion will be slightly delayed.  If only I could understand Danish!