Lane Bryant Black Dress Back Zip Size 18/20

Lane Bryant black dress with back zip and 3/4 sleeves. Size 18/20. Measurements: Bust = 42" around Sleeves = 18" Shoulders = 17 " Length = 36.5" Does not have a fabric tag, so I am unsure of the fabric type. All pre-owned clothing and linens for sale in my store have been cleaned.