Affectionately dubbed the Bulldog, this wallet was a collaboration effort between myself and Carl Murawski. Carl had grown tired of his Victorinox Cadet and Fischer Space Pen banging around in his pockets and wanted a wallet that kept those two items as well as his cards and cash all nearly organized in one place. Carl also came up with the idea of having the wallet be shaped like a front pocket - the idea being that it would slide neatly into, and fit nicely in, a front pocket! These can be made with or without the front pocket shape by request. I can also expand the size of the knife pocket slightly by request if the knife you have is thicker, or slightly longer, than a Cadet. In this case, you will be responsible for providing measurements, because I dont have every knife in the world. However, the Bulldog is intended to fit a 3 inch knife and Fischer Space Pen - so if you are looking for it to fit a 5 inch knife and a different pen - this isnt the organizer for you.