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
Prismatic Groovy Concentric Background 3
Source GDJ
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
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
Might not be super subtle, but quite original in its form.
Source Alex Smith
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A free black metallic background pattern. Here's a new pattern I made that looks metallic.
Source V. Hartikainen
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
A blue gray fabric-like texture for websites. An yet another fabric-like texture. It has subtle vertical and diagonal stripes to it.
Source V. Hartikainen