On a dark blue embroidered device consisting of a rounded rectangle 3 inches (7.62 cm) in width overall, a silver gray stylized snarling cougar head in profile, detailed dark blue with white eyes, muzzle, fangs, and chest, around the rectangle a silver gray scroll inscribed "KIRBY" in chief, "HIGH" in sinister, "SCHOOL" in dexter, and "COUGARS" in base in dark blue letters. All edged with a 1/8 inch dark blue border.
Navy blue and silver gray are the school colors. The Cougar is the school mascot. The device is shaped in the manner of the Memphis City seal.
The shoulder sleeve insignia was authorized 18 June 2008. (TIOH Drawing Number A-10J-865)