The Grey Civilian Shirt is a common clothing in Apocalypse Rising. It can be purchased in the newspawn screen for free.
This is one of the variants of the civilian shirt. It is actually quite good for blending in to the night, as it is dark and covers most of the player's upper body. It is common and can be found at any civilian spawn. Like any civilian clothing item, when it is in your inventory or on the ground, it appears a sort of beige color.