Description
A dark blue (old glory blue) rectangle arced at top and bottom 3 inches (7.02 cm) in height and 2 inches (5.08 cm) in width overall, in chief below an arc of five white stars is a white stylized outline of the summit of Mt. Rainier detailed dark blue and silver gray; in base three demi-spears, one erect superimposed by two saltirewise, all with buff shafts and scarlet spear points.

Symbolism
Red, white, and blue are our National colors, with red being emblematic of valor; white, purity of purpose; and blue, loyalty. Buff and scarlet are the traditional colors of Army Support. The stars commemorate the five campaigns the 593d participated in, namely World War II, Vietnam, Desert Storm, Somalia, and Operation Iraqi Freedom. The massive Mount Rainier dominates the skyline in the Northwest and recalls the unit’s heritage of being stationed at Fort Lewis, Washington, for over 30 years. The spears overlap to form an “X” on an “I” that alludes to the Roman numeral “IX” or nine. Nine plus the three spears and five stars signify the number 593, the numeric designation of the Brigade. The three arrows represent combat readiness and the three core branches of logistics: Ordnance, Quartermaster, and Transportation, that the organization provides to the War-fighter.

Background
The shoulder sleeve insignia was originally approved for the 593d Sustainment Brigade effective 16 April 2008. It was redesignated effective 16 July 2013, for the 593d Sustainment Command with the symbolism revised. (TIOH Dwg. No. A-1-916)