On an equilateral triangle with a 1/8 inch (.32 cm) green border, 3 7/16 inches (8.73 cm) in height overall, one point up, divided into three sections, the upper section yellow, the dexter section blue, and the sinister section red, a gun bendwise in front of a tank track and wheels all black and overall a red lightning flash bend sinisterwise. In the apex the Arabic numeral "5" in black letters.
Yellow, blue and red are the colors of the branches from which Armored units were formed. The tank tread, gun and lightning flash are symbolic of mobility, power and speed. The Division's designation is in Arabic numerals.
The shoulder sleeve insignia was approved on 22 November 1940.