Lauren Jeans Company Black & White Marled Rag Knit Sweater size Medium(?)

Boatneck rolled edge 3/4 sleeve Vented side seams at hem Marled yarn in rag style knit Black & white Stretchy No size or fabric tag Size medium? (please see measurements) I believe this is 100% cotton Pit to pit approximately 20" Length approximately 23" - 24" Very good pre-owned condition, no stains or pulls