COS black and white striped silk bottom button back top size Extra Small XS

COS black and white striped silk bottom button back top. Pullover style with crew neckline. Knit striped material on top. Silk material on bottom. Button detail down the back. Curved hemline. Size XS. Excellent preowned condition. One tiny spot on bottom as shown. 100% cotton top and 100% silk bottom. Machine wash. Bust 17” Length 23” Arms 17”