Vintage Esprit de Corp wool striped collared dress

Vintage Esprit de Corp wool blend stripped sweater dress. Purchased decades ago. Space dye blue body with alternating stripe banding at waist in contrast light blue, beige, tan, and light yellow. V-neck neckline with zipper and collar, short sleeves. Stretchy and high quality material. Very flattering fit. Tag is very faint but says size M.