Liz Claiborne NWOT bright print shirt dress w/drawstring belt runs big like M

Truly amazingly beautiful dress w/ pockets!! Feels so soft. Colors are all this seasons best royal blue, red, pink, rust etc. buttons down hidden placket. Finely tailored. Generously sized. Round collar. Sleeves have 3 buttons. Honestly feels like Rayon!! Just read it’s not! Runs very big for size marked S. Pit to pit 20” waist flat 18.5” shoulder to hem 36”. Also has POCKETS and cute side vents. Never worn no flaws or wear!! M some L could wear please go by measurements for best fit.