[ GAP ] Button Down Shirt

Sky blue collared button down shirt. There are darts at breasts and on the back, as well as, 3" sleeve cuffs with 2 button closure. There are some marks on the back of left sleeve. Not sure where they came from, but see last image. Other than that, the shirt has plenty more wears to go. 70% cotton, 26% polyester, 4% spandex. Measurements Laying Flat: armpit to armpit 19.5", shoulder to shoulder 15", center front 24", sleeve length 24".