Description
On a shield 2 1/4 inches (5.72 cm) in width and 3 inches (7.62 cm) in height overall within a 1/8 inch (.32 cm) red border a yellow field charged with two blue arrowheads above the apexes of two red interlaced chevrons.

Symbolism
The supply and services and maintenance elements of the organization are represented by the two red chevrons and the arrowheads refer to the combat units which the organization supports.

Background
The shoulder sleeve insignia was originally approved for the 377th Support Brigade on 11 May 1966. It was redesignated for the 377th Corps Support Command on 19 October 1979. It was redesignated for the 377th Support Command (Theater Army Area) effective 16 July 1981. The insignia was redesignated with the description updated for the 377th Support Command on 19 October 2000. It was redesignated effective 16 September 2007, for the 377th Sustainment Command. (TIOH Drawing Number A-1-420)