Mens Button Down Shirt

Brand: Izod Size: Large Color: Red and white checker pattern. With White buttons Preloved, with Regular wear and tare. There are stains on the back that are very faint, you its hard to see from a glance but if you look at the back in the close up you will see 2 faint brown spots. I did wash and noticed it after it came out of the wash. This is the only flaw