You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
A seamless background pattern with impressed gray dots.
Source V. Hartikainen
A seamless background of warped stripes on paper.
Source V. Hartikainen
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
From a drawing in 'Handbook of the excursions proposed to be made by the Lincoln Diocesan Architectural Society, on the 27th and 28th of May, 1857', Edward Trollope, 1857.
Source Firkin
Abstract Tiled Background Extended 6
Source GDJ
Prismatic Hexagonalism Pattern No Background
Source GDJ
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
A seamless pattern recreated from an image on Pixabay. It is reminiscent of parquet flooring and is formed from a square tile, which can be recovered in Inkscape by selecting the ungrouped rectangle and using shift-alt-I together.
Source Firkin
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-brown.
Source Yamachem
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
The original enhanced with some gradients.
Source Firkin
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin