Hi everyone! I'm new to this forum - came across it while trying to find an answer to this particular question, actually. I'm hoping you guys could help me out: I recently bought a trench coat from Banana Republic - their "khaki trench". It's a very nice trench, with a lot of classic trench coat detailing (gun flap, etc), but I don't recognize what this is: Attachment 51834 I don't know what it is, what it does, or how to use it It came attached like that, although there was a thin thread that connects the left-most tip of the thing to the collar itself - I assumed it's meant to be cut, so while I was playing around with it I took out the thread. Couldn't find anything through Google, so I emailed BR's customer service - they told me to take it in and show it to their "style specialist," which I certainly don't have time for; help please!