Size M.

Pit to pit: 21 inches.

Length from top of shoulder to hem: 28.5 inches. 

100% cotton.

Machine washable.

The shirt is in excellent used condition but there is a prominent line running down the length of the fabric on the right side (most visible in last photo). This seems to be a result of the manufacturing process as there are some faint lines in other areas of the shirt but this particular one is more visible.