vintage navy madmen vibe dress

Such a madmen vibe!!! Lovely 60s simply brilliant dress. Navy blue colour with white plastic button on the front and bottom, they do not open just for show.. each arm has 2 buttons on the cuff that do open. Zips up the back and has a tie around the waist. Made from a textured material that I'm not sure what it's called for made from as the tag has been cut out. The only tag in it is at the bottom of the skirt and it's a made in Canada union label. Dress is not lined but has lining around the arm cuff only... not sure why? Has darts in the back for a nice fitted look. it's in excellent condition! I'm guessing in vintage sizing it's probably a large. Usually vintage runs on the smaller size. measurements are laying flat. armpit to armpit 21" sleeve length 21" armpit to bottom 31.5" waist 19.5" across the bottom 23" this is a vintage item, as far as I can see there is no flaws. Seems to be in great condition