Staud Sz. M Navy Blue Check L/S One-Button Collared Cardigan Sweater. Well cared for and in excellent condition. This is labeled a medium. That said, there's a lot of flexibility in size definitions from brand to brand. Please use the measurements in the photos and compare to a similar piece you own. If there's another measurement you'd like, let me know. Ask all questions before offer, bid or purchase and consider pictures as part of description. I will list any issues I find. Materials: 70% viscose, 29% polyester, 1% spandex