so love playing around with pbr textures and see what i can get and this is what i did in this tutorial
i used pbr textures but mixed them with other blender textures like i used the new ambient occlusion input texture which is a new node to add more details around the seams of the shoe, i also used the color ramp to play with the contrast of the reflection and give the shoes that leather texture
Download 3d model here https://www.cgtrader.com/esmilesvfx
learn blender 2.8 free training series
learn blender 2.8 tips playlist https://www.youtube.com/playlist?list=PLYKnBP50d35K11nJzd7eQWaF17RqwAjfR