The 1st Sub-Legion is found today in the 3rd United States Infantry Regiment (The Old Guard). The distinctive unit insignia worn on the epaulette of the 3rd Infantry Regiment is a gold-colored metal device that shows "an Infantry officer's cocked hat of 1784 with plume." This alludes to the crest of the 3rd Infantry Regiment's coat of arms, which shows a black cocked hat with white plume. These are the colors of the 1st Sub-Legion. An example of a similar hat can be seen in the uniforms of the 3d Infantry Regiment's Fife and drum corps.