Polka dot ruffled Priani Blazer

This is so cute!!!! Bought this in a vintage shop in Edmonton but it doesn’t quite accommodate my bust! Pit to pit 18 inches, no stretch, I think this is a cotton/linen blend, but the material tag is cut out so I can’t say for sure. No size visible, about a medium, please see measurements Waist 16, Shoulder to hem 22.5 inches Fully lined, has shoulder pads