80s floral short sleeve button up blouse

the cutest 80s button up blouse, has a cargo type cut and two front pockets. looks great open or buttoned! by the brand Separate Issue no label size, pit to pit laying flat is 24.5in, length is 27in. I would say it would xl-1x best or any size under for an oversized fit item is in good used vintage condition with no flaws or stains that I could notice