In the early 70s, only 2.5 percent of the United States Armed Forces were women. But these days women are a common part of the military. For the last couple decades, women have made up close to one-sixth of soldiers. Until recently, they’ve served in support roles, and haven’t been on many front lines. With changing roles, more female soldiers are training for situations that put them in harm’s way. But military bases recognized a problem: body armor was designed to fit men, not women. Equipment designers began work to change that in 2009 with a new generation of female body armor.