This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
This background pattern contains worn out colorful stripes as a texture.
Source V. Hartikainen
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Might not be super subtle, but quite original in its form.
Source Alex Smith
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Seamless Dark Grunge Texture. Here's a new grunge texture for use as a background.
Source V. Hartikainen
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Same classic 45-degree pattern, dark version.
Source Luke McDonald
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
This is a remix of "geometrical pattern 01".
Source Yamachem
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by susanlu4esm
Source Firkin
Prismatic Chevrons Pattern 5 With Background
Source GDJ
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
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Prismatic Groovy Concentric Background 3
Source GDJ
A seamless web texture of "green stone".
Source V. Hartikainen
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin