A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
Remixed from a drawing in 'An Index to Deering's Nottinghamia Vetus et Nova', Rupert Chicken, 1899. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
A seamless gray background texture suitable for use on websites. To me, it has the look of stone. Feel free to modify it to meet your needs (by making it a bit lighter or darker, for example).
Source V. Hartikainen
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
The perfect pattern for all your blogs about type, or type-related matters.
Source Atle Mo
A background pattern with wavy green vertical stripes. This one has green stripes on a white background. Download if you like it.
Source V. Hartikainen
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin
Prismatic Abstract Geometric Background 4
Source GDJ
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain