This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
A seamless pattern based on a rectangular tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
Might not be super subtle, but quite original in its form.
Source Alex Smith
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
This pattern comes in orange, and it looks as if it is "made of glass".
Source V. Hartikainen
A repeating background for websites with a texture of black groove stripes.
Source V. Hartikainen
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
From a drawing in 'Real Sailor-Songs', John Ashton, 1891.
Source Firkin
There are many carbon patterns, but this one is tiny.
Source Designova
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Spice up your next school project with this icon background.
Source Swetha
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin