Vintage Yves Saint Laurent YSL Black Wrap Dress 36 FR /4

Vintage Yves Saint Laurent YSL Black Wrap Dress 36F / 4. It has hooks at the waist. It would require wearing a top underneath (very low V opening). It states it is marked a size 4, but I feel it runs smaller (see measurements). It is made in France. Measurements - Pit to Pit 16.5" / 33" total circumfrence Waist 12.25" / 24.5" total circumference Shoulders 16" Sleeve 21" Length 38" OL2A6