Vintage 80s Mariea Kim unusual short sleeve sweater top

This eclectic sweater top is from the 80s label Mariea Kim. This brand had a lot of unusual fun clothing. Shirt has square buttons on the front which have fabric tied around them. I have washed this and it came out looking the same as it went in. There is no materials tag and I really do not know what the fabric is made of. The whole shirt has a textured feeling and it isn't exactly soft. It is stretchy and has a little bit of weight to it. It is perfect for spring weather. Cute v-neckline in the front and the back. I do not see any issues except the fabric pieces tied around the buttons have some fraying on the edges. It may supposed to be like this. Measurements while sweater is flat: -Across chest 22" -Across hem 18" -Length from top of shoulder to hem 22.5"