Cotton button down, black old navy

black or super dark gray cotton button-down with front pocket. size medium Black with little white dots close up, see pic. size tag is missing but I bought two identical shirts at the same time and it is definitely medium. and definitely cotton. 100% or close to it Nice breathable light cotton & well made Same shirt on white in closet too! (bundle both for less) All buttons intact while taking pictures there is a dark stitch on the bottom left under the arm, barely visible. never noticed but only wore once. Like new.