This listing is for a nice size XL button down tunic shirt from Old Navy.  It is a plaid flannel done in blues and off-white with a bit of black as well.

The sleeves are long and the shirt has a folded collar.  It is done in a slight high low style.  This shirt is in very good condition with gentle wear and the measurements are: 

Bust is approximately 26 1/2"  -  53" buttoned

Length is approximately 28" in front, longer to 30" in back

100% cotton

Machine wash.