Vintage Alice Polynesian Fashion dress tiki pin up Hawaii tropical

Amazing condition. I believe this might be cotton, it does have the feel. No size tag. Listing as M/L judging by the measurements. Not stretchy. Button detail on shoulders, has a pocket and also comes with the matching belt. 39” long, 19” armpit to armpit, 20” across the waist. Beautiful print and colors! I think possibly 1960s, but I am not sure.