Men's vintage 1980s wool abstract checkered geometric knit vest size large

One men's vintage 1980s wool abstract checkered geometric knit vest labeled size large. Measurements laid flat are: length is 29", chest is 21" and stretches out to 23", waist is 17" and stretches out to 20". It is labeled a size large, and runs true to size with a relaxed fit. Tag reads "Penobscot Bay Traders knitted goods made in USA". It is in excellent vintage condition with no major or minor flaws. This vest features an overall abstract checkered pattern on the front, a plain back, and contrast ribbing around the neckline, arm holes, and waist. Knit is slightly stretchy. Due to the nature of the knit fabric, it is also very scratchy when worn on skin.