A gold color metal and enamel device 1 3/16 inches (3.02 cm) in height overall consisting of a gold heraldic arming buckle (square) with tongue vertical and inner spaces buff issuing a red fleur-de-lis upon a blue area between two white antlers surmounting the upper sides of the buckle, all above five heraldic gunstones (black rounds) enclosed by a red scroll around base from the lower corners of the buckle and inscribed "BORN OF PRIDE" in gold.
The arming buckle is a piece of equipment which was required in the preparation of a medieval knight to do battle, and along with the colors buff and yellow (gold) and the spreading antlers, represents the mission and ready condition of the predecessor unit, the 145th Supply and Service Battalion. The colors blue and yellow and the two antlers refer to the former unit's service with the 2d Infantry Regiment during World War I. The colors scarlet and white denote a period of service as Engineers and yellow refers to the predecessor unit's service as Armored Cavalry. Scarlet and yellow represent the former unit's World War II service as Field Artillery and the five gunstones denote as many campaigns from Normandy through Central Europe. The fleur-de-lis alludes to the Belgian Army Citation for action at the Meuse River.
The distinctive unit insignia was originally approved for the 145th Supply and Service Battalion on 29 October 1979. It was redesignated for the 145th Support Battalion with the symbolism revised effective 1 September 1988.