Full-Grain Leather Belt

Details

A belt cut as a single strip from the back of a vegetable-tanned hide, 4 mm thick and 35 mm wide. Most belts on the shelf are two thin splits glued face to face with a grain printed on the top one. They crack along the fold line within two years because the glue line is the weak point, and they are sold as leather because they are, technically, leather. The trade grades hide in four steps and the labels borrow from the wrong one. Full-grain is the outer surface with its pores intact, cut whole. Top-grain is that surface sanded off. Genuine leather is a split from the lower layer with an embossed grain, which is the second-worst of the four despite the word. Bonded leather is dust and offcuts glued to a backing. A laminated belt is usually two pieces of the third grade. This one has no glue line because it has no second layer, and you can check that yourself: cut 5 mm off the tip and look at the cut edge under a lamp. A laminated belt shows a straight pale seam running through the middle of the section. A single strip shows continuous fibre, dense at the grain side and looser at the flesh side. In the lab the same question is answered by microscopy to ISO 17131 and thickness to ISO 2589, and we run both per hide.

• Single strip 4 mm full-grain vegetable-tanned leather, 35 mm wide, no lamination
• Grain uncorrected and unprinted, ISO 17131, thickness to ISO 2589
• Chromic oxide nil by ISO 5398, which is what proves the vegetable tannage
• Hexavalent chromium below 3 mg per kg by ISO 17075-1, tested per lot
• Solid brass buckle on two screws, swap it with a coin, no plated zinc
• Five holes at 25 mm spacing, punched and edge-sealed, centre hole is the stated size
• Edges hand-slicked in three passes, no painted coat to flake off in a strip
• Tensile to ISO 3376 on the finished strap
• No bonded or split leather, no glued layers, no plated buckle
• Veg-tan takes water marks and darkens where it runs through the loops, unevenly. Brass dulls to a warm brown, which polishing takes back off in a minute. Neither is a defect and both will happen.