Vibe Watercolor Long Sleeve Blouse, Size Small/Medium

This pretty blouse is completely lined, including the sleeves. The fabric is 100% polyester and machine washable. It is a watercolor print of periwinkle blue and a peachy color on a white background. It is a button down with hidden buttons. It also has a mandarin color. The blouse says a size 20 which it is not by our sizing so my best guess would be a size small or medium. Please refer your measurements carefully. They are length 25.5”, pit to pit 18”, sleeves from top 18” and waist 19”.