Necropolis Guard armor was the armor of the Necropolis Guard.
The armor was forged using thick, durable metal alloys with trace amounts of Trinium woven into the metal. The armor's red tint came from a chemical compound that was poured into the molten metal at the time of forging and didn't affect the armor's strength.
The breastplate was heavy and was adorned with curved blades and spikes on the shoulders.
Necropolis Guard armor was considerably more durable and provided more protection for the wearer than the armor used by most other Jaffa. (RPG: "Living Gods: Stargate System Lords")