Description:[1]
A black leather strap 1/2 inch (1.27 cm) wide with buff leather strap 1/4 inch (.64 cm) wide “woven” in the middle—a simulation of the old buff and black knapsack strap. To be worn on left shoulder only of coat and overcoat at the junction of the sleeve and shoulder with two buff sections showing in front.

Symbolism:[2]
When this unit was under the command of General Anthony Wayne (1792-96), the special markings on the uniform were buff piping and black hair plumes. From this combination the regimental colors became buff and black, and for many years the unit was nicknamed the “Buff Sticks.” It is related that men of the 3rd Infantry, proud of their distinctive colors, at one time displayed these colors by weaving a broad strip of rawhide (natural buff color) in the broad black shoulder strap of the knapsack carried at that time. This buff and black knapsack strap effect is perpetuated in the distinctive trimming.

Background:[3]
General Order 6, published May 26, 1922, implemented the use of the Knapsack Strap, commonly known as the Buff Strap.

Wear of the Strap was considered a special privilege, and it was not to be worn by men under arrest or by recruits before they started regular duties with their companies.

General Order No. 4 (Apr. 3, 1924) stated: “It is the one distinctive and peculiar marking of the Regiment. It is required therefore that those who wear it shall at all times keep the reputation of the Regiment in mind and shall not fail in soldierly conduct and smartness of appearance.”