A bit of scratched up grayness. Always good.
Source Dmitry
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Sometimes you just need the simplest thing.
Source Fabricio
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
Prismatic Triangular Background Design Mark II 5
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
Remixed from a drawing in 'Очерки Русской Исторіи въ памятникахъ быта', Petr Polevoi, 1879.
Source Firkin
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers