I gave it a try. If you use only the normal map and the procedural noise texture it gives you a very muddy texture.
You need to use original texture to "sharpen" it. I've used this one: Fabric Knitted 005. The base color has a pattern that I didn't want to use. So I took the ambient occlusion image as a replacement.
Mixed it with your noise texture and added a Musgrave texture to mimic the larger dark and bright areas.
The roughness image of the PBR fabric seems to be pure white. Because I liked to have some variation I inverted and "color ramped" the ambient occlusion image. This way the holes are rough (not shiny) and for the threads, you can have a little sheen.
The result is not completely the same but close to the reference.
The Mapping is connected to the Image Texture, (it got moved and it's a bit hard to see now)
(The model is not properly UV unwrapped - stitched pattern look)