This was formed by distorting an image of a background on Pixabay.
Source Firkin
Prismatic Polyskelion Pattern No Background
Source GDJ
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
A simple bump filter made upon request at irc #inkscape at freenode. Made a screen capture of the making here: https://youtu.be/TGAWYKVLxQw
Source Lazur URH
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A seamless pattern formed from a modified version of rwwgub's tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
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 Geometric Pattern Background 2 No Black
Source GDJ
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
CC0 remixed from a drawing. Walter Crane, 1914, Firkin.
Source SliverKnight
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
An abstract texture of black metal pipes (seamless).
Source V. Hartikainen
You may use it as is, or modify it as you like.
Source V. Hartikainen
Sort of reminds me of those old house wallpapers.
Source Tish
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male