Originally Posted by RFX45
It's hard to define. Some leather are meant to be sturdy and be able to take a beating like Schotts and others that are actually meant for riding while others like Ann D tends to be on the thinner and softer side to drape better but quality is still good, they don't use cheap ones Wilsons use.
Good quality leather jacket doesn't end with good leather used, build and construction also plays a part because whats the point of using the best leather available if the jacket falls apart?
I'd say it's more along these lines. In general, the evenness of the grain and size of the hides are factors, but the purpose of the jacket has a lot to do with what qualities of the leather will be considered quality. If you're getting a leather jacket for durability, the thickness and stiffness of the leather as well as the seam construction (open vs closed, single vs double stitched, etc) would probably be at the top of the list for what makes a quality jacket. When you get into the aesthetic side of things, the physical quality of the leather used can vary to suit the garment's structural needs, because at this point, leather is just a material, and there aren't huge debates about how the thickness of cotton determines a cotton jacket's quality.
The leather on this is literally paper-thin, like a 40 lb stock, and it's treated to be kind of waxy. But it's designed to emulate a nylon anorak, which would normally made of a fairly thin material, which is itself usually somewhat slick with a sheen. So, even though the leather itself isn't thick or tough, I'd still give it the "quality" stamp of approval. It's well constructed and finished (the stitches are straight and even, etc) and the leather's physical qualities were consciously chosen to support the jacket's aesthetic.