A Silver color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a shield blazoned: Gules, three Jaguars per pale, reversed, courant, Argent (Silver), all within a bordure Sable. Supported by a folded scroll Black turned Red bowed to top and bottom and inscribed to top with "SOUTHSIDE ACADEMY" and to bottom with "JAGUARS" in Silver letters.
Black and red are the school colors. The Jaguar is the school's mascot which signifies initiative and daring spirit. Black represents determination, red signifies patriotism. The shape and design of the shield is taken from the Baltimore City flag and shows the cadet's allegiance to their City, Community and School. The use of three running Jaguars is to make reference to the motto's three focal words "Learners, Leaders, and Achievers".
The shoulder loop insignia was authorized on 15 November 2011.