Black Crinkle Jacket, Lightweight Coat, Unlined, Halloween?

Stunning black dress jacket or coat! I never wore this, bought at a boutique in Massachusetts and it has just hung in my closet! The back of it can be loosened to fit an XL or tied tighter to fit a smaller size (I am size Small) It is lightweight, unlined, unique, perfect over a little black dress or whatever to dress up! Definitely has "Wicked" vibes! Large pockets on each side. Large statement collar, big front buttons, large pockets on the sides. 100% polyester crinkle. Never used!! Would be gorgeous this holiday season! I think this would be perfect foan Elphaba or witch Halloween costume!