This is a vintage women's cream blouse from Van Heusen in size small.
It measures about 19.5" underarm to underarm, 23.5" shoulder to the cuff, 17.5" across the waist, 13.75" shoulder to shoulder, 23" shoulder to hem, and 25.5" from the back of the neck to the bottom hemline when laid flat.
The top comes in good pre-owned condition with brown stains under each arm.