A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
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
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A pattern derived from part of a fractal rendering in Paint.net.
Source Firkin
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Here's a repeatable texture that resembles a light green concrete wall or something similar.
Source V. Hartikainen
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady