From the early 2000s comes this twin set from Xscape. It's a slinky stretchy nylon/metallic/spandex knit, accent on slinky! Impossible to wrinkle. The cardigan or jacket is basic, no frills beyond the silver metallic. The shell is sleeveless with gracefully draped cowl neckline. Very classy. Super versatile, worn together or separately. No flaws.
ON SALE? It could be. Private sales are done here from time to time so look for a dark pink sale banner with a discount code (percentage off) on any of my shop pages. Individual items do not show sale prices during private (non-site-wide) sales.
UNSTRETCHED MEASUREMENTS

top: bust 40", length 22"

cardigan: bust 43", length 24", sleeves 24"

This item is sold from an excellent, highly rated vintage boutique in Northfield, OH.