Measuring 320mm x 220mm, the bag features a semi-rigid outer shell that can be used on its own if desired. The shell stores five long jigs in one inside mesh compartment series of dividers, and eight medium jigs on the other inside side. There's also a roomy outside pocket with hook-and-loop closure on one side, for gloves, leader, pliers or whatever. That's just the start of it.
Then there's the internal bag, which is semi- rigid and will take whatever accessories you might want. It measures about 350mm x 210mm x 50mm and has a nylon zip closure, and a hook-and-loop base that matches the inside spine of the outer shell, so it stays where it's put inside the shell.
Then you can add or subtract the two additional jig storage liners. These are both the same, each accepting another four long jigs and six medium jigs. These two storage sections can be separated themselves (more hook- and-loop) and each used on its own, and each has a sewn-in webbing handle.