This Dr. Horrible's Sing-A-Long Blog fan-art contains
surcoat and surcot.
There might also be
tabard, vêtements de plein air, survêtements, vêtements de dessus, vêtements d’extérieur, and overclothes.
Extra's Mario Lopez talks about the internet success of Dr. Horrible's sing-along blog. Features interview clips of Joss Whedon and Neil Patrick Harris and snippets of the show.