Vintage 80s polka dot flare sleeveless dress

Vintage 80s dress Women's size 8, but please see measurements. The mannequin it is on is size 8. No brand tag but there is a tag for size, fabric White with polka dots in yellow, green, pink & purple Strapless Zipper in the back Low waist A-line or flare, fitted upper, below the knee-length Made in Canada 97% cotton, 3% spandex Some stretch Approximate measurements: armpit--armpit 16"; across waist 16", across hips 22"; length 33" Preowned 999