Such a unique piece! Wasn’t able to find a comparison online and the tag has worn off, but it feels like rabbit fur(I had rabbits for years). I do not know the size but it looks like it would fit small medium and large, depending on how you want it to fit. Small would be oversized and large would be tight. It is in used good condition! Approx. Measurements laying flat: Across chest: 24” Sleeve from shoulder: 19” Top of shoulder to bottom of jacket: 25”