Random Purple cape with Velcro fasten - repro or retro?
 

Hi everyone,
I didn’t even know a place like this existed until I needed it.
Recently I bought a large bundle of accessories off eBay that had genuine TMNT, real ghostbusters and GI Joe accessories. I had thought these might be splinters gown/cape at first but it wasn’t (I wasn’t disappointed though as the rest of the items were genuine) but then I couldn’t figure out if the capes are from another retro toy, or, just repros?!

The only reason I say that is the fabric is thick and it reminds me of something from my Childhood. It is also stitched and had Velcro on it ????????*♂️. Any help would be appreciated thanks n advance if you can help

It looks too nice to be a vintage custom to me.

I looked and saw similar capes from stone protectors, Blackstar, Battlestar, and even some starwars stuff, but couldn't find that one specifically...

I was going to suggest Imperious Leader from BSG but, on second thought seems like a repro for something.

Vintage Mattel Imperious Leader had a sleeveless gown with no arm holes, all sewn up, no velcro. Different material.