Army Physical Training Shorts. Designed after the new APFU (Army Physical Fitness Uniform) optional wear regulations. Enhanced performance fabrics designed with the athlete in mind. The outer shell is constructed of 100% polyester for durability and side panels featuring a Poly/Spandex blend for added stretch and movement. Physical Training Shorts are equipped with a drawstring and elastic waist for an ideal fit and boxer style inner liner. Hidden waist pocket near the left leg.