On a Silver Gray shield shaped embroidered device 3 1/2 inches (8.89 cm) in height and 2 1/2 inches (6.35 cm) in width overall, and blazoned: Silver Gray the helmet of Sir Thomas Dale Gules plumed and fimbriated with a line of the same, all within a 1/8 inch (.32 cm) Black border and inscribed "THOMAS DALE" in Black letters.
Maroon and silver gray are the school's colors. The helmet is representational of Sir Thomas Dale, and a Knight is the school's mascot.
The shoulder sleeve insignia was authorized 2 March 2005.