You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
A chequerboard pattern with a fruit theme. The fruits are from a posting by inkscapeforum.it.
Source Firkin
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
You know you love wood patterns, so here’s one more.
Source Richard Tabor
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
This light yellow background pattern consists of an irregular pattern of spots. Here's a light background pattern with yellowish tint.
Source V. Hartikainen
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
Kaleidoscope Prismatic Abstract No Background
Source GDJ
Simple combination of stripy squares with their negatively coloured counterparts
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
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
Remixed from a drawing in 'Jezebel's Daughter', Wilkie Collins 1880
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
The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/
Source Yamachem
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin