US Army DUI Distinctive Uniform Insignia

The US Army Distinctive Unit Insignia (DUI) is a metal emblem worn as part of the uniform to signify affiliation with a specific army unit. Commonly referred to as a “unit crest,” each DUI features unique designs, colors, and symbols that reflect the history, mission, and honors of the associated unit. The insignia is typically made from enameled metal and measures approximately one inch in height. It is worn on the Army Service Uniform, positioned on the shoulder loops or lapels, depending on the uniform regulations in effect at the time. Authorized by the Institute of Heraldry, these insignias have been used since the early 20th century and remain an important element of army heraldry. They are collected for their historical significance and their connection to specific regiments, battalions, or brigades within the United States Army. Each insignia provides a visual record of unit identity and heritage.