Vintage 80s Knit Vest Yarnworks EUC sz M Oversized Blue

Vibrant electric blue vintage 80s knit vest by Yarnworks. Excellent used condition, no damage. Tight stitches. Cute lapel; Deep Armholes; Oversized; Two-button horizontal closure at the waistband is dead giveaway of the era. 100% acrylic. Made in Taiwan, R.O. C. Marked M, but generous cut-please zoom in on measurements.