On a blue and gray vertical rectangle arched convexly at the top and bottom and edged with a 1/8 inch (.32 cm) gray border, a stylized alphabet letter "S" that is divided vertically blue and gray. On top of the letter "S" there is two crossed swords with points to the bottom in white. Attached above, a blue scroll edged with a 1/8 inch (.32 cm) gray border inscribed "SOUTH" in white letters. Attached below, a blue scroll edged with a 1/8 inch (.32 cm) gray border inscribed "REBELS" in white letters. The overall dimensions are 3 1/2 inches (8.89 cm) in height and 2 1/2 inches (6.35 cm) in width.
Blue, white and gray (silver) are the schools colors. Blue alludes to loyalty and truth while white and silver are for peace and sincerity. The rebel is the school's mascot and reflects the strength and spirit of the cadets. The stylized "S" represents South High School. The crossed swords symbolize both South High School and North High School.
The shoulder sleeve insignia was authorized 27 May 2011. (TIOH Drawing Number A-10J-964)