On a oval equally divided horizontally blue and white, blue uppermost, with a 1/8 inch (.32cm) blue border, 3 inches (7.62cm) overall height and 2-1/2 inches (6.35cm) in width, three crossed arrows heads up counterchanged white on blue and blue on white.
Blue and white are the Corps colors. The arrows are representative of the strength of the organization and the two divisions of the oval and the three arrows are indicative of the numerical designation of the organization.
The shoulder sleeve insignia was approved for the XXIII Corps on 3 April 1944. A distinctive unit insignia was not approved for the XXIII Corps. (TIOH Drawing Number A-1-388)