Alex Evenings vintage (?) black metallic dress pants

Sparkly black fully lined elastic waist pants by Alex Evenings. I believe these to be true vintage based on the tag. Originally marked as part of a set but only the pants are available. Attached hanger straps. Some pilling at hemline as shown. Approximate measurements: 15.25" waist flat lay, unstretched 14" front rise 27.75" inseam 11.75" leg opening, flat