A gold color metal and enamel device 1 3/16 inches (3.02 cm) in height overall consisting of an arc of three concentric red, gold metal and blue bands, the ends curving downwards and terminating behind a vertical white fleur-de-lis on either side above in base a yellow demi-sun with gold rays on a light blue background, all above a red scroll, the ends curving behind the lower area of each fleur-de-lis, inscribed "RAINBOW" in gold letters.
Blue is the color used for Infantry. The rainbow alludes to the shoulder sleeve insignia of the Division and spanning across two fleurs-de-lis symbolize their combat service in France during both World War I and World War II. The sun, adapted from the seal of the State of New York, refers to the location and home area of the 42d Infantry Division.
The distinctive unit insignia was authorized on 3 June 1976.