The FBC Mail Sack is a medium-sized, utilitarian sack made from a durable, slightly weathered fabric, featuring the Federal Bureau of Control's logo prominently stamped in a muted, official color. Its shape is roughly cylindrical with a drawstring closure at the top, designed for easy access and secure transport of documents. The fabric shows subtle signs of wear and tear, with a texture that suggests heavy use in a bureaucratic environment, yet maintains a professional appearance.