Short Sleeve Tunic Sweater Tan Brown Size M

Good condition, minor wear. Missing brand/size/material tag. Short sleeve tunic sweater. tan/brown color, heathered pattern. Beige t-shirt underlay. Has belt loops. Missing size tag, my best guess is a medium; please see measurements to ensure proper fit. Pit to pit laying flat 18.5” Shoulder to hem 30” Sleeve (pit to hem) 1.5”. All measurements are approximate and taken lying flat. Smoke free home. No trades, offers welcome.