The little card or tag that comes with a bag is not just packaging filler. It tells you what the bag is made of, and the material dictates everything about how you should care for it. The trouble is the terms sound similar and mean very different things. Here's a plain-English translation.
The leather ladder, top to bottom
Full-grain leather is the top layer of the hide with its natural surface intact. It's the strongest, it develops that lovely patina over years, and it's what you'll pay the most for. Care is simple: condition it occasionally and it ages beautifully. Small scratches often buff out with a fingertip because the fibres are dense and intact.
Top-grain leather has had the very top sanded and refinished, which makes it more uniform and a bit more stain-resistant, but it won't patina the same way. Treat it much like full-grain — condition it, keep it dry — just know the surface finish is doing some of the protecting.
"Genuine leather" sounds premium and is actually the lower end. It's real leather, but usually a lower layer of the hide with a finish applied on top. It's fine, it's affordable, but it won't develop character and it can crack or peel at the finish over time. Keep it conditioned and out of heat, and don't expect it to age like the good stuff.
Bonded leather is leather scraps ground up and glued onto a backing. It behaves more like a coated fabric than leather and tends to peel eventually. Just wipe it clean; conditioner won't do much.
Vegan and coated materials
- PU (polyurethane) leather: the most common vegan leather. Wipe with a damp cloth, keep out of heat and sharp sunlight which can make it brittle. Don't use leather conditioner — it does nothing useful here.
- Coated canvas: tough and water-resistant, wipes clean easily. Great for daily totes.
- Recycled nylon: lightweight, sheds light rain, machine-spot-cleanable. The care is mostly about the zips and hardware, not the fabric.
Suede is its own thing
Suede is leather with the fuzzy underside facing out. It's the highest-maintenance material in the bag world: it stains from water and oils, so it wants a protector spray up front and a suede brush to lift the nap and remove dry marks. If your label says suede or nubuck, treat it gently and preventatively rather than trying to rescue it after a spill.
Reading between the lines
A few practical tells when you're deciding how careful to be. If the tag lists a specific conditioner or says "leather will develop a patina," you've got real, higher-grade leather that rewards a little care. If it just says "wipe with a soft dry cloth" and nothing about conditioning, it's almost certainly a coated or finished material that you should not try to feed with oils.
The point of all this isn't to make you a leather snob. It's that the same act — say, rubbing in conditioner — is exactly right for full-grain leather and completely pointless (or harmful) on PU. Once you can read the label, you stop guessing, and you stop accidentally doing the wrong thing to a bag you were only trying to look after.