Armani Collezioni virgin wool blazer size 6

Super cute blazer with ruffled trim. Soft virgin wool and fully lined. Button closure. Can be dressed up or down - with jeans or for formal occasions. Neutral blended dark brown and gray colors. Made in Italy. Approx size Pit to pit 17” Length from shoulder down 21.5” Sleeves from shoulder down to ruffle 24.5” More info on size; I believe this fits more like a size 4. My bust size is 36” but I cannot button the top button 🙁