AllSaints Firebase Long Sleeve Shirt Button Up Collared in color Sand. Light tan Khaki. Shacket shirt jacket style. Fabric has a nice weight to it. Purposefully distressed, as shown in photos. Military utility work overshirt. 

100% cotton.

Men's size small. 

Measurements with the garment laying flat:

Pit to pit: about 20 inches

Length: about 29 inches