Fire-Block Courier. Built-in padlock is keyed differently Well-built and secure, the Fire-Block Courier is ideal for transporting important evidence, products, papers and documents by banks, labs, law offices, delivery services, and government agencies. The Fire-Blocks TruLock zipper and padlock keeps contents secure. The flap features a hook and loop fastener to shield the zipper and padlock from heat. Designed to transport heavy materials, the tapered handles make carrying weight effortless. As attractive as it is secure, the Fire-Block Courier is available in many colors and made of a 1000-denier Cordura Plus fabric with a water-resistant polyvinyl coating. A see-through window on the bag is perfect for a business card or company identification. One color/ one side/ one location imprint no charge.