100% black Leather IE 2 button cropped blazer-style jacket

Reposhing this item I purchased from @zolasmommy, because it's too big for me. I bought it because my sister has the exact same jacket and I love it, so I wanted to get the exact one. And my sister's is a size large, as this one is, but my sister's is smaller... my sister's is maybe older than this one, which is in like new/never worn condition... I'm guessing company's use different manufacturers for the same model item from year to year and they must size things differently: I know for sure this is true with jeans, and now I think it has to have happened with this jacket, too.