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
A seamless design of flowers remixed from a jpg on Pixabay by Prawny.
Source Firkin
Zero CC tileable Laminate wood texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Prismatic Abstract Geometric Background derived from an image on Pixabay.
Source GDJ
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Prismatic Groovy Concentric Background 3
Source GDJ
Seamless tile drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
A yellow tiled background... Blurriness, bokeh effect and rectangles pattern in one mix.
Source V. Hartikainen
Seamless Light Background Texture.
Source V. Hartikainen
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
Classic vertical lines, in all its subtlety.
Source Cody L
Inspired by a JPG that was uploaded to Pixabay by kokon_art
Source Firkin
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
An alternative colour scheme to the original seamless pattern.
Source Firkin