A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Colour version of the original pattern inspired by the front cover of 'Old and New Paris', Henry Edwards, 1894.
Source Firkin
Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.
Source Firkin
It looks very nice I think.
Source V. Hartikainen
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A repeating background with seamless texture of stone. There haven't been any stone-like backgrounds for a while, so I have decided to create one more. The rest can be found in the appropriate category.
Source V. Hartikainen
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
This is a seamless pattern of a woody texture.The original image is here:https://pixabay.com/ja/users/ClassicallyPrinted-1302233/
Source Yamachem
Might not be super subtle, but quite original in its form.
Source Alex Smith
A seamless texture of a rough concrete surface.
Source V. Hartikainen
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background pattern made in "Grunge-Like" style. Available in both SVG and JPG formats. Edit to your needs then click the download button.
Source V. Hartikainen
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
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
Retro Circles Background 7 No Black
Source GDJ
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Black brick wall pattern. Brick your site up!
Source Alex Parker
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard