The FBC Mail Bag is a medium-sized, utilitarian bag with a brutalist design, featuring a rigid, angular structure made from a dark, weathered leather-like material. It has a prominent Federal Bureau of Control (FBC) logo embossed on the front, with metallic buckles and straps that add a functional yet ominous aesthetic. The interior is lined with a strange, glowing fabric, hinting at its otherworldly properties within the game's surreal universe.