It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
A brown metallic grid pattern layered on top of a dark fabric texture. It should look great when using as a tiled background on web pages, especially blogs.
Source V. Hartikainen
Background formed from the original with an emboss effect
Source GDJ
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Zero CC tileable dry grass texture, photographed and made by me. CC0
Source Sojan Janso
This seamless light brown background texture resembles a wallpaper with vertical stripes. One way to use it is as a tiled background on web sites.
Source V. Hartikainen
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Prismatic Basic Pattern 2 No Background
Source GDJ
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
The texture of this background image has some similarities with leather, and it's colored in a dark brown color. So, if you are looking for a dark brown background image for your website, this may be an option for you.
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
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
Prismatic Chevrons Pattern 5 With Background
Source GDJ
Snap! It’s a pattern, and it’s not grayscale! Of course you can always change the color in Photoshop.
Source Atle Mo
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.