A gold color metal and enamel device 1 1/8 inches (2.86 cm) in height overall, consisting of a purple pentagon background surmounted by a tiger's head in gold, detailed black in sinister side, a gold tiger's paw in dexter. A double scroll, in base, purple with gold lettering inscribed "SWANSEA" on the top of the scroll and "HIGH SCHOOL" on the bottom scroll.
Purple and gold are the school colors. The tiger/paw represents the school's mascot and is symbolic of the cadets' fighting spirit.
The shoulder loop insignia was authorized 7 October 2004.