Banana Republic white summer dress

The fabric tag is cut out, but it is a size medium. Pretty sure that it is a polyester/elastane blend. I’ve had this dress for two summers, but I only wore it once when I first bought it. There’s absolutely nothing wrong with it and no stains. Skirt is lined. Self-tie attached belt, midi length. Best fit size 6-8, with approx. 1-2” of stretch at the waist. Measurements (all approx): waist ~14.5” flat, 28” waist to hem, 42” shoulder to hem, side slits 11”