|The following is based on Fallout Tactics and some details might contradict canon.|
Environmental armor was developed for use in heavily contaminated environments, and is prized in the Wasteland for its ability to protect against biological threats. This armor affords the wearer 60% protection against harmful airborne agents and radiation. A superior version of this armor is environmental armor Mk II.
Knights of the Brotherhood of Steel are sometimes dressed in environmental armor. This protects them against radiation, chemical and bio warfare agents. Of course, it also helps with the brahmin smell.
Early concept artEdit