Everett describes the armor as having been worn by a priest who said the armor was bulletproof, a theory which was proven false when put to the test. Said experiment was described by Everett as "a gloriously fun time".
A leather apron, or the remains thereof, attached with straps. A large leather and metal pauldron over the left shoulder and arm. Two large double belts, attached to the bottom belt is a pouch hanging over the thigh. The pants are of a dark leather, the knees and back of knees are padded. Covering the shins are metal guards held on by leather straps. Both leather boots extend to the knees.
This armor is a reference to the Judas Priest song "Leather Rebel". Specifically, the claim that the armor was previously owned by a priest who claimed to be bulletproof. The claim of bullet proof is in the fifth verse while the "Priest" is the band name.
↑The Lone Wanderer: "You got anything for me?" Everett: "Guess you earned this. Used to belong to a desert priest. Said wearing it made him bulletproof. Course, that didn't stand up to a little testing. But damn if it wasn't a gloriously fun time." (Everett's dialogue)