The image depicts an edo-era pattern called "same-komon" or "鮫小紋"which looks like a shark skin.The "same" in Japanese means shark in English.
Source Yamachem
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Colour version of the original pattern.
Source Firkin
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
Prismatic Curved Diamond Pattern No Background
Source GDJ
The name is totally random, but hey, it sounds good.
Source Atle Mo
Prismatic Hexagonalism Pattern No Background
Source GDJ
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Colour version of the original seamless pattern.
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
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien