Scanned 4k Seamless fabric materials.
Denim - Melange and Velour.
Tossed some pieces of clothing in the printer, and scanned away!
Then i made all of the textures seamless in Photoshop - and generated some PBR maps while i was at it!
If you are interested in buying these materials, you can do so here: https://cgmood.com/3d-model/fabric-material-pack
You can also check them out on my Artstation Store!