Sometimes if I am in an urban area wearing a combat patrol pack and wearing an M65 jacket,,,I often wear my Air Force cap with the American Flag pin and SAC Pin on the front. At least it lets people know that I'm All-American. (One day I wanted to put a sign on the back of the pack that says, "I'm NOT homeless, I'm employed...and I don't want your d....n money".)
I generally use Arc'teryx backpacks, but occasionally the patrol pack makes its appearance.