Many costumes smell odd after it's out of the box so the best thins to do is wait. But if you want to get rid of the odor quickly:
One thing, do not throw this into the washing machine since it can spoil the cloak since it's made out of leather. My best advice is to leave your cloak outside for a couple hours and possibly spray some Febreze or some other kind of odor emulator product onto the coat.
This kind of issue happened to me when one of my costumes I bought online smelled like a thrift store. I used this technique since I didn't want to shrink the costume, which was made out of silk and it was a great success.
Noiz [DRAMAtical Murder] 70%
Okita Souji [Hakuouki] 90%
Riku [Kingdom Hearts II] 70%
Yusei Fudo [Yu-Gi-Oh! 5Ds]
Chrome Dokuro [Katekyo Hitman REBORN!]
Armin Arlet or Levi [Shingeki no Kyojin]
Last edited by Noize : 11-25-2012 at 10:24 AM.