Combat armor is the epitome of non-powered armor in the wastes, and was much favored by police and military forces for their outstanding durability coupled with their high level of maneuverability. The armor itself consists of a large chest plate and helmet constructed out of high-level defensive polymers. It's highly effective armor for medium level player characters, as it provides good resistance against small arms fire, laser beams and blasts of plasma energy alike.
Combat armor also grants the wearer +20 Radiation Resistance. Interestingly, this is not documented anywhere in or out of the game.