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
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Square design drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
Classic vertical lines, in all its subtlety.
Source Cody L
Feel free to download this "Dark Wood" background texture for your web site. The background tiles seamlessly!
Source V. Hartikainen
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
A free tileable background colored in off-white (antique white) color.
Source V. Hartikainen
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
A seamless texture of an abstract wall colored in shades of light orange brown.
Source V. Hartikainen