Non branded XXL dress classy

Super pretty dress. No tags except the size. It’s great material but not sure the material. Zippers up the back. A faux wrap with flowing lengths Has a fabric belt that can come off. Both loops are in great condition Long sleeve balloon sleeve A taupe/ brownish/ neutral? It’s almost all those shades together. Measurements: P2P: 21 inches Sleeve: 25 from end of the the shoulder Length from waist:22 inches to the longest layer Full length:37 inches