Materials
Full-grain, top-grain, nappa and "genuine": what leather labels really mean
The grades of a hide from the outside in, why "genuine leather" tells you almost nothing, what nappa is, and five checks you can do with your hands.
A hide has layers
Leather is a slice of skin. The outside, where the hair grew, is dense and tightly packed; the inside is looser and more fibrous. Where a piece of leather comes from in that thickness decides how it looks, how it wears and how long it lasts. The grades are just names for those layers.
- Full-grain: the whole outer surface, untouched except for tanning and finishing. Shows the natural grain, pores and small marks of the animal. Strongest, ages best, costs most.
- Top-grain: the outer surface lightly sanded to remove marks, then finished. Smoother and more uniform than full-grain, slightly less durable, still good leather.
- Corrected grain: sanded harder, then embossed with an artificial grain pattern and pigment-coated. Looks uniform, feels a little plastic, cracks sooner.
- Split: the inner layer left after the top is cut away. Suede is a split with the nap raised. On its own it is weak; coated and embossed, it is sold as cheap "leather".
- Bonded: leather dust and offcuts glued to a backing and embossed. Technically contains leather. Peels within a year or two.
What "genuine leather" means
Legally, in most countries, only that the material came from a hide rather than a plastic. It says nothing about which layer. Many makers use the phrase for the lowest grade they can still call leather, which is why "genuine leather" belts and wallets fall apart. We use the words too, because customers search for them, but on our product pages the leather is always named: sheepskin nappa for the jackets, full-grain cowhide for the vests. Ask any seller which layer their leather is; if they cannot answer, that is the answer.
What nappa is
Nappa is not a grade but a finish: full-grain leather, usually sheep or lamb, tanned and dyed through to be soft and pliable, with the natural grain left visible. The word comes from Napa, California, where the process was developed in the nineteenth century. Good nappa is thin, light, drapes rather than stands, and breaks in within weeks. It is why our jackets feel the way they do on day one. The sheepskin or cowhide guide compares it with the heavier hide we use for vests.
Aniline, semi-aniline, pigmented
After the grade comes the finish. Aniline leather is dyed through with no surface coating, so every mark shows and the hand is unmatched; it is also the least protected. Semi-aniline adds a thin, clear protective layer that keeps most of the feel and hides nothing important. Pigmented leather has an opaque colour coat on top, which hides flaws and resists stains, at the cost of feel and breathability. Our jackets and vests are semi-aniline: the grain shows, water beads briefly rather than soaking in, and a damp cloth is all the cleaning they need.
Five checks with your hands
- Look at the grain. Real full-grain has pores and small irregularities that do not repeat. A perfectly even pattern is embossed.
- Press it. Good leather wrinkles finely under a fingertip and recovers. Coated leather dents or does nothing.
- Smell it. Leather smells of leather. Chemical or plastic smells mean a heavy coating or a bonded product.
- Check an edge. A cut edge of full-grain shows tight fibres at the top and looser ones below. Bonded leather shows a uniform, paper-like edge.
- Water drop. On semi-aniline leather a drop sits for a moment then slowly darkens the surface, which dries back without a mark. On pigmented leather it sits forever; on bare aniline it soaks in at once.
What this means for a jacket
For a jacket you will wear for years, you want full-grain (nappa for softness, cowhide for structure) with a semi-aniline finish. Top-grain is acceptable. Corrected grain, split and bonded are not, however the label is worded, because the surface will crack or peel before the lining wears out. The our leather page explains exactly what we use and where it comes from; the lifespan guide explains what that buys you.
Questions
Is sheepskin a lower grade than cowhide? No. Grade is about the layer, not the animal. Sheepskin nappa is full-grain; it is simply thinner and softer than cowhide.
Are the marks on my jacket defects? Scars, insect bites and variation in shade are the hide's history and the proof it is full-grain. Only tears, holes and loose stitching are faults, and those are covered by the legal guarantee.
Does "vegan leather" count? It is a plastic, usually polyurethane, and belongs in a different conversation. It does not breathe, age or last like a hide.
