More in the paper realm, this time with fibers.
Source Jorge Fuentes
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Seamless Green Tile Background
Source V. Hartikainen
Textured Red Brown Plastic, Free Background Pattern. Although there's already enough plastic in our lives, let's bring it to the web too.)
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.
Source V. Hartikainen
Sort of reminds me of those old house wallpapers.
Source Tish
A version without colours blended together to give a different look.
Source Firkin
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal