The Pelican TrekPak insert for the 1550 case is designed for use within a Pelican 1550 Medium Protector Case. It can replace an existing divider system, or be used to create partitions within a compatible and completely empty Pelican case. Once installed, they maximize available carrying space, protect equipment or valuables for transport, and provide an interior organization that can easily be rearranged or customized along with any changes to the contents of the Pelican case.