Diesel Tee

Short sleeve grey tee. Please see close up where my finger is pointing to a small blue spot, something is on the shirt, not a stain, something you can actually fee. I tried to gently pick it off, but didn't want to scrape too hard and cause damage. If you can live with the blue mark, it's a cool shirt. Size XXXL. Measures 26.75 inches pit to pit. 100% cotton. Good used condition.