This was formed by distorting an image of a background on Pixabay.
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
Looks like an old wall. I guess that’s it then?
Source Viahorizon
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Oh yes, it happened! A pattern in full color.
Source Atle Mo
This one has rusty dark brown texture.
Source V. Hartikainen
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
Prismatic Hexagonalist Pattern No Background
Source GDJ
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
Sort of reminds me of those old house wallpapers.
Source Tish
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
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
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
This is the remix of an Openclipart clipart called "Maze" uploaded by "any_ono_mous".Thanks.This is a seamless pattern of a maze.
Source Yamachem
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
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
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
The following repeating website background is colored in a blue gray color and resembles a concrete wall or something similar to it.
Source V. Hartikainen
Embossed lines and squares with subtle highlights.
Source Alex Parker