Whirlaway Frocks vintage 80’s rayon dress size XL

Very nice vintage 80’s dress by Whirlaway Frocks. No size tag, but I’d estimate it to be an XL based on measurements. There is also no content tag, but it feels like rayon. Bust is elasticized and is 46” unstretched, waist 46”, hip approximately 54”, length 48” from shoulder to hem. Very good condition.