1980s Authentic US army field jacket Vintage

1980s Authentic US army national guard field jacket Good used condition, significant sun damage on the left side and some paint stains, everything should be visible in the photos. The size isn’t labeled but shoulder to shoulder measurement is 21 inches, pit to pit 23 inches, and length is approximately 28 inches. Zipper and buttons work. 100% cotton outer shell and lining. WPL 10881