The Sailor v3, built for your belt. The Sailor v4 is the belt-carry version of the Sailor sleeve. Same sizes, same loop options — but with cutouts on the back that thread onto a standard belt (up to 40mm / 1.5" wide). If you’ve been running a v3 in your pocket and want it on your hip instead, this is the switch. The basics 4 sizes: S, M, L, XL Belt cutouts: fit belts up to 40mm (1.5") wide Loop options: pen (D 11mm), AAA (D 15mm), AA (D 18mm), or none Full-grain leather, hand-stitched, hand-burnished edges Made by hand in my Kyiv workshop, one at a time What fits — size by size S — item 55 × 100 mm / pocket 45 × 100 mm Swiss Army Pioneer, Cadet, Buck 55, WE Banter. Small pen (up to 10 cm). M — item 55 × 120 mm / pocket 45 × 120 mm Buck 110, Benchmade Bugout, Osborne. Full-size pen. L — item 65 × 120 mm / pocket 55 × 120 mm Spyderco Para 3, Benchmade Adamas Mini, Leatherman Arc, Wave. XL — item 75 × 130 mm / pocket 65 × 130 mm Leatherman Charge, Surge. Flashlight loops: AAA tested with Olight i3t, AA tested with Olight i5t. The leather (and why it’s named on the label) Crazy Horse (Rusty, Pistachio) — waxed pull-up. Scratches rub out with your thumb, color shifts with carry. Koala (Cigar, Black) — smooth, even, minimal marking. All full-grain — the top layer of the hide, not corrected or bonded scraps. Who it’s not for For pocket carry instead of belt carry, look at the Sailor v3. For a belt clip that snaps on and off without threading, look at the Sailor v5. FAQ What belt width does it fit? Any belt up to 40mm (1.5") wide — standard belt size. Which size do I need? Match your knife to the list above. When in doubt, size up. What’s the difference between the loop options? No loop: knife sleeve only. Pen loop (D ~11mm). AAA loop (D ~15mm). AA pocket (D ~18mm). Does the leather scratch? Crazy Horse (Rusty, Pistachio) marks with use — most scratches rub out with your thumb. Koala (Cigar, Black) is smoother and marks less. 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 size, leather, and loop option. Add to cart. Ships within a few days, handmade and ready to carry.