One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
A free web background image with a seamless concrete-like texture and an Indian-red color.
Source V. Hartikainen
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
Fix side and a seamless pattern formed from circles.
Source SliverKnight
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
White handmade paper pattern with small bumps.
Source Marquis
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
From an image on opengameart.org shared by rubberduck.
Source Firkin
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov