Leather is also a very durable material. Real leather trainers or shoes, well made, be they pig-skin or cow compare greatly to everything else out there. There's a guy on YouTube who's entire channel is him cutting up shoes to show how they are made and what's in them. The only time he has trouble cutting up shoes is when they are real leather. He compared the "vegan" Docs to the leather ones and the leather ones were about three times stronger—and both were the same price! This means the leather ones will last much longer and be more reliable.