Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
Prepared mostly as a raster in Paint.net and vectorised.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A seamless web texture with illustration of pale color stains on canvas.
Source V. Hartikainen
The image depicts the Japanese Edo pattern called "seigaiha" or "青海波" meaning "blue -sea- wave".I hope it's suitable for the summer season.
Source Yamachem
A seamless pattern formed from miutopia mug remixes on a tablecloth.
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
A seamless pattern formed from a sports car on clker.com. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Kaleidoscope Prismatic Abstract No Background
Source GDJ