A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
Pattern Background, Texture, Photoshop Structure style CC0 texture.
Source Darkmoon1968
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
8 by 8 pixels, and just what the title says.
Source pixilated
Lovely pattern with splattered vintage speckles.
Source David Pomfret
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Prismatic Abstract Geometric Background 4
Source GDJ
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
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
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
Prismatic Hexagonalist Pattern No Background
Source GDJ
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Oh yes, it happened! A pattern in full color.
Source Atle Mo
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin
Prismatic Groovy Concentric Background 4
Source GDJ
There are many carbon patterns, but this one is tiny.
Source Designova
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.
Source V. Hartikainen
Prismatic Polka Dots Mark II 2 No Background
Source GDJ