I-N-C pullover sweater black with tulle ruffle sleeves Size L ( runs small)

Rayon blend pullover sweater by International Concepts with a round ribbed knit neckline, short silhouette, and adorable tulle ruffle sleeves with bead detailing. Great pre-owned condition. This sweater is labeled a large but check measurements. It has lots of stretch but seems to run the size of medium. armpit to armpit inches 15 length inches 20.5