An attempt for cleaning up the original image in a few steps.
Source Lazur URH
Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Zero CC tileable pine bark texture, photographed and made by me. CC0
Source Sojan Janso
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A light gray background pattern with seamless fabric-like texture and almost unnoticeable stripes.
Source V. Hartikainen
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
The image depicts a pattern of regular hexagon.As I made to use it for myself,I want to others to use it.Speaking about the ratio of the image, height : width = 2 : √3(1.732...)Ridiculous to say,I realized later that this image is not honey comb pattern.I have to slide the second row.
Source Yamachem
From a drawing in 'Jardyne's Wife', Charles Wills, 1891.
Source Firkin
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
A green background pattern with warped vertical stripes and a grunge look.
Source V. Hartikainen
Prismatic Snowflakes Pattern No Background
Source GDJ