Hi Artstation,
In this video, we will texture a leather bag in substance painter and render it in the Marmoset toolbag. you can learn about texturing process in substance and the rendering process in the Marmoset toolbag for this kind of project. both of them are powerful tools and if you can follow and understand these software, you can do anything. For the texturing part, I used some products that you can find here,
first smart material leather collection: https://www.artstation.com/a/12591044
And for the side pattern, I used fabric stitches seamless pattern: https://www.artstation.com/a/12946212
Our Artstation Blog : https://www.artstation.com/a/616780