Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Inspired by a pattern found in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
Prismatic Abstract Background Design No Black
Source GDJ
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-yellow.
Source Yamachem
One more updated pattern. Not really carbon fiber, but it’s the most popular pattern, so I’ll give you an extra choice.
Source Atle Mo
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A free pink background pattern.
Source V. Hartikainen
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
This was formed by distorting an image of a background on Pixabay.
Source Firkin
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
Abstract Tiled Background Extended 11
Source GDJ
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton