Casual top

Womens unlined casual top. Worn once to a concert. Does have a small stain (pictured), not sure what it is - maybe a dryer sheet stain?🤷🏽‍♀️ I didn’t notice it until I hung the shirt up right in front of my face. I usually wear an XL so the sizing is weird on this one because it says medium, but it fit me perfectly. I’m cleaning out my closet. All stitching intact, no rips or snags.