Prismatic Groovy Concentric Background
Source GDJ
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Here's a brown background pattern with subtle stripes. I hope you'll like the color. If not, feel free to change it using an image editor, if you know how of course. Personally, I'm using GIMP to create these backgrounds.
Source V. Hartikainen
Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
There are many carbon patterns, but this one is tiny.
Source Designova
Prismatic Hypnotic Pattern No Background
Source GDJ
A gray background pattern with a texture of textile. Suits perfectly for web design.
Source V. Hartikainen
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
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
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
A version without colours blended together to give a different look.
Source Firkin
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel