H&M metallic sequin cardigan tagged XS but fits large

Holiday party anyone? This one is a showstopper - oversized velvet cardigan jacket with gold Sequins and gold embroidery. And it has pockets! Tagged XS but I am a size 10/12 and it fits great on me. Will accommodate a wide range of sizes. For that reason I am listing as a medium. 3/4 length sleeves Approximate flat measurements: Shoulder to shoulder 17” Armpit to armpit 24” Bin k