A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
A seamless pattern formed from miutopia's cakes on a tablecloth.
Source Firkin
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
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
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Retro Circles Background 7 No Black
Source GDJ
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Wasn't satisfied with the original's colouring. Too much component transfer and colormatrixes yet the results are lacking a bit. So this time it is a simple black to transparent fade, making it possible remixing easily once there will be other blending modes supported as well. Probably in inkscape 0.92.
Source Lazur URH
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin