Teal Blue Silky Oriental Overcoat

measurements: [flat measure] 45.5 cm [pit to pit] 35.5 cm [shoulder to wrist] 140 cm [neck to bottom] Fair warning some of the clasps are weak and pop open easily, I've tried to fix them but I haven't figured it out I am also unsure what exactly the piece is, I've tried to reverse image search but it doesn't bring up anything close to it