A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
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
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
A frame using leaves from an image that was uploaded to Pixabay by mayapujiati
Source Firkin
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Prismatic Groovy Concentric Background 2
Source GDJ
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
A dark metallic background with a pattern of stamped dots. Here's a dark "metallic" background pattern for you.
Source V. Hartikainen
Just like the black maze, only in light gray. Duh.
Source Peax
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin