There are different types of leather. When buying you have to pay attention, because the products are extremely deceitful.
When making a leather product, you need to split the thickness of the leather, otherwise it's too bulky to make anything with it
Shops market "Genuine leather" a real leather, when in fact it can be barely considered leather, since it's just the remaining part of the split, which should be thrown out.
The types of leather are:
-Full grain leather - best quality it's the top part of the skin, the most rezistent part
-Top Grain leather- Very good quality, it's full grain leather with a smoother surfice
-Genuine leather - Marketing scam, mediocre quality, since it's just the remaining part witch should be thrown out.
- Bonded leather- It's made of different cuts glued together. Bad quality, though it is not on sale usually.
When buying clothes you'll see the markets are full of "genuine leather", nice name, deceptive nonetheless.
Here's a video describing this more: https://www.youtube.com/watch?v=k8Dsuqgis8A