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
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
A repeating background with wood/straw like texture.
Source V. Hartikainen
A repeating background for websites with a texture of black groove stripes.
Source V. Hartikainen
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.
Source Firkin
Prismatic Groovy Concentric Background 3
Source GDJ
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec