Vintage 80s Off White Cotton Summer Dress with Back Cutout Size 4

1980s fitted sundress by Lizwear. This was originally white, but has become off white. Dress has back buttons, a mid-back cutout, and an elastic waistband, which is stretched out and needs to be replaced. Dress also has light stains on right side. Approximate flat lay measurements: Length: 34.75 Armpit to armpit: 14 Waist: 13 Mannequin: 34-25.5-35 87% cotton, 13% nylon