APFU is the abbreviation for Army Physical Fitness Uniform. APFUs are worn every Friday. Wearing APFUs is a part of the cadet's Physical Fitness (PT) grade. LET 1s and 2s have the APFU shorts, Army shirt, sweatpants, and hoodie. LET 3+ have to turn in the sweatpants they received as a LET 1 or LET 2. LET 3+ receive a new pair of sweatpants and another jacket.