The Torso Extremity Protection Program (TEP) is providing Airmen across the Air Force with a modular scalable system that will provide levels of protection against fragmenting munitions, handgun, and small arms (with the use of a hard armor insert) threats. TEP initiative is a modular, scalable four tier system that allows the commander to tailor the Airman's protective level for different mission profiles. Airmen test the fit and mobility of the TEP system. (U.S. Air Force photo/Taylor Harrison)