Project runway zip front sleeveless Mini dress Size 4X Black

Project runway woman zip front sleeveless dress Size 4X Mini dress or tunic? Please see measurements Black Inside tags missing, Has stretch Probably a polyester blend Good preowned condition Free of rips, holes or stains Measurements taken with garment laying flat armpit to armpit is 26.5”, waist is 25.5”, shoulder to bottom hem is 37.5 inches. Tags: retro, plus size