9th and 10th graders wear a navy blue blazer with emblem; 11th and 12th graders wear a maroon blazer with emblem.
All students are REQUIRED to wear khaki pants with DM emblem OR gray dress trousers, solid dress shirt and tie, belt, and required dress shoes.
There are no sweatshirts, hoodies, coats, jackets, sneakers, sweatpants, shorts allowed on a uniform day.
Spring uniform may be worn when permissible, upon the discretion of the Dean of Students. Spring uniform is DeMatha polo with khaki pants with DM emblem OR gray dress trousers, belt, and required dress shoes.