H&M Black Sleeveless Cocktail Dress size Small Pre-Owned aka Little Black Dress

H&M Black Sleeveless Cocktail Dress size Small Pre-Owned. Zipper in back is 22 inches long. Waist has belt loops on both sides. Belt is missing. Measurements: Shoulder to bottom of the dress is 37 inches long. Armpit to armpit is 17 inches across. Waist width is 14 inches across. Width of bottom of dress is 18 inches across.