Utilizing 100 percent DuPont Kevlar XP, a new woven fabric technology from DuPont Protection Technologies, Perform-XP protects against increased threat levels faced by officers, and deliver incredible bullet-stopping power under a variety of extreme field conditions (heat, humidity, cold and mechanical wear). According to independent lab tests conducted by DuPont, Kevlar XP consistently stops most bullets within the second or third layer of a ballistic panel. The remaining layers absorb the energy of the bullet and tests have shown that Kevlar XP decreases back face signature (BFS) by 15 percent or more, thereby reducing potentially serious ballistic and trauma injuries. It is also up to 10 percent lighter than other technologies designed to defeat the most challenging NIJ Level IIIA ballistic threat -- the 44 Magnum. Perform XP is also engineered to protect against other "special threats" ammunition such as the 9mm SXT 127 grain and FN 5.7x28, among others.