Vintage 80s? JCPenney lingerie sleep set

Good condition Vintage 80s? Black nylon and lace Lingerie two-piece pajama set. Note the tag is intact but unreadable. I have another set exactly like this one listed in red that is JCPenney brand and 100% nylon. Measurements taken flat: About 22 inches long from top of strap to hem About 19 inches pit to pit. About 13 inches across waist but is elastic with good stretch up to about 21 inches. Shorts about 15 inches from waist to bottom of Gussett. About 15 inches across waist. Note there is no elastic stretch in this waist. Would have to either be replaced or be your exact size . About 22 inches across the widest part of the back. Note no rips, stains or tears. The lack of elastic in the shorts is the main issue of note. *the shorts are pinned on my mannequin* This item is sold as is. Pictures are part of description. Please review photos and ask questions prior to purchase. Thanks!