This is a free collection of texture brushes for Procreate. There are 13 different textures, and they come in two versions, one monochromatic, and one with colour variation. You can find more details in the PDF reference document that accompanies the brushes.
Scroll down to download the brushes.
If you post on Instagram something you made with the brushes, please tag me @gcrabe. Here is a video preview.
If this is your first time downloading brushes, click here for some instructions.