Vintage US military issue OG-107 sateen utility shirt jacket. Crafted from durable olive green cotton sateen fabric, this authentic field shirt features dual flap-covered chest pockets with button closures, a full button-down front placket, barrel cuffs, and a classic spread collar. Tagged with NSN 8405-00-615-0166 and size 15 1/2 x 35. Classic military workwear silhouette that layers easily as an overshirt or light jacket. Pen mark on front.