Liz Claiborne striped collar cardigan

I'm selling this super cute black cardigan with striped, almost varsity style collar. It says size large but seems to be closer to a Medium, although practically anyone size can wear it because of it's open front design. I thrifted this pre-owned but in perfect condition besides a very light stain, visible on the white downward stripe, ( see last picture) it looks like it will come out with any simple stain treatment though.