Multi-tool, knife, flashlight, pen, and notebook. One organizer. The First Mate Fatty is the largest pocket organizer I make. Built for a full loadout: a Leatherman or multi-tool, a full-size knife, an AA flashlight, a full-size pen, and a Field Notes notebook in the back pocket. With or without a pen loop. Still fits in a back jeans pocket. The basics Size: 15 × 13 cm with pen loop / 15 × 11 cm without Back notebook pocket: 11.5 × 10 cm (fits Field Notes) Internal pockets: 9 × 5.5 cm and 7 × 4.5 cm Full-grain leather, hand-stitched, hand-burnished edges Made by hand in my Kyiv workshop, one at a time What fits Multi-tools: Leatherman Wave, Surge, Skeletool, Charge. Knives: Benchmade Bugout, Spyderco Para 3. Flashlight: Olight i5t AA and similar. Pen: any full-size pen. Notebook: Field Notes (9 × 14 cm) in the back pocket. The leather (and why it’s named on the label) Crazy Horse (Rusty) — waxed pull-up. Scratches rub out with your thumb, darkens with carry. Ponte Wax (Tan) — vegetable-tanned, smooth, natural color that patinas gradually. Koala (Black) — smooth, even, minimal marking. All full-grain — the top layer of the hide, not corrected or bonded scraps. Who it’s not for If you only carry a knife and flashlight without a multi-tool, the standard First Mate gives you a slimmer carry at $64. For something more compact, look at the First Mate v3. FAQ Does it really fit in a pocket? Yes — the back pocket of most jeans accommodates it. It sits vertically so it doesn’t stick out. Does the notebook pocket fit Field Notes specifically? Yes. Back pocket is 11.5 × 10 cm — Field Notes fit perfectly. Other notebooks of similar size work too. Do I need the pen loop? Only if you carry a pen alongside everything else. Without it, the organizer is 2 cm narrower. What multi-tools fit? Leatherman Wave, Surge, Skeletool, Charge. Internal pocket is 9 × 5.5 cm. Who makes it and where? I do, by hand, in my workshop in Kyiv, Ukraine. Every order ships with a handwritten note. We’ve shipped 7,000+ orders and earned 600+ five-star reviews. Pick your leather and pen loop option. Add to cart. Ships within a few days, handmade and ready to carry.