Fabulous Crimplene Dress Waistcoat Set. 
In very good vintage condition. 
Black ribbed fabric to front chest, collar and sleeves. 
Fitted front and back darts 
Rear zip fastening. Polo style collar. 
Matching sleeveless waistcoat/vest. 
Labelled as size 16 (vintage sizing) and much smaller. 
Measurements Laid Flat:
Pit to Pit: 19.5"
Bust: 18.25"
Waist: 17.5"
Hips: 19.5"
Length from collar: 32.75"