Description
On a shield, oblong in shape and arched at both ends, 3 inches (7.62 cm) in height and 2 inches (5.08 cm) in width overall, edged with a 1/8 inch (.32 cm) blue border fimbriated by a 1/16 inch (.16 cm) white inner edge on a blue background, the upper length of a white spear, the area below the spearhead enveloped with a stylized yellow flame having an inner core of red.

Symbolism
The colors blue and white are used for Infantry. The spear, an early Infantry weapon in flames, symbolizes the evolution and firepower of the modern Infantry.

Background
The shoulder sleeve insignia was approved on 10 June 1966. (TIOH Dwg. No. A-1-404)