Silk Frame blouse, excellent condition no visible signs of wear.Medium not Large

This silk Frame blouse was purchased on the designer website The RealReal. The condition was described as “Excellent” with “no visible signs of wear.” It has subsequently never been worn and is in “like new”condition. It is a Large, but I believe that it runs very small for this brand. PTP is only 15”. Just because I know this brand well, but I have listed it as a medium.