Diana Rosh Mink Knit Plaid Vest XS

This is a brand new Diana Rosh mink fur knit plaid vest. It is tagged as a size small but it is quite tight on me and I’m a standard size 6. I loved it so much I found it in a size medium which fits me better. I believe that this vest is a sample (i ordered it from another site) and is missing the usual tags. There is some damage along the likely faux leather alongside the zipper from getting caught in the zipper (mostly on the inside of the vest). I have included photos. Bust measurement is 18” zipped & unstretched (and it does stretch a little) and the length is 19”.