Ginger Caftan Dress

Ginger caftan dress. Can't seen to find a tag with materials used. My guess is 100% polyester. Tag reads small/medium. Has slits on the sides that go to about the knee. 51.5" From top of shoulder to bottom hem Please feel free to message any questions about the dress:) Model is 5'2" 120lbs Brand may not exist anymore. Purchased at small boutique. Thank you!