I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/
Source Yamachem
Prismatic Abstract Geometric Background 3
Source GDJ
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
Remixed from a drawing in 'Очерки Русской Исторіи въ памятникахъ быта', Petr Polevoi, 1879.
Source Firkin
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
From a drawing of the coat of arms of the Ottoman Empire on Wikimedia.
Source Firkin
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo