The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
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
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Here's a seamless brown cork board background texture. Feel free to download or reshare if you like.
Source V. Hartikainen
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
A series of 5 patterns. That’s what the P stands for, if you didn’t guess it.
Source Dima Shiper
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin
This one has rusty dark brown texture.
Source V. Hartikainen
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
This is a seamless pattern which is derived from a flower petal image.
Source Yamachem
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Prismatic Polyskelion Pattern No Background
Source GDJ
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste