On a dark blue vertical rectangular embroidered device, arched at the top and bottom, a white embattled pale, arched at top and bottom, embattled on the left and right side, bearing a red bayonet, point up; all within a 1/8 inch (.32 cm) white border. Overall dimensions are 2 inches (5.08 cm) in width and 3 inches (7.62 cm) in length.
Flag blue is the color traditionally associated with Infantry units. The embattled pale suggests tank tracks, denoting the 120th Infantry's lineage as an armored unit. Red symbolizes the Brigade's striking capabilities. The bayonet signifies close combat, illustrating the Brigade's mission.
The shoulder sleeve insignia was approved on 4 April 2007. (TIOH Dwg. No. A-1-920