Vintage long dress by Momentum zippered back black geometric pattern size XS

True vintage long dress with a polyester feel. Zippered back. No size that I can find but waist is tiny, please see measurements. Made in USA with union label. Has fabric belt in same material. Vintage brand is Momentum. Machine washable. Black in color with geometric pattern in colors of orange, rust, and crème. V-neck with wider collar. Fantastic dress! Definitely will not see anyone else in this dress! Pair with boots or espadrilles. Thank you for looking! Comes from a pet friendly home.