An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
U.S.-based National Fire Protection Association standard fire diamond for flagging risks posed by hazardous materials. The red diamond has a number 0-4 depending on flammability. The blue diamond has a number 0-4 depending on health hazard. The yellow has a number 0-4 depending on reactivity. the white square has a special notice, e.g OX for oxidizer.
Source Firkin
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
Seamless Olive Green Web Background Image
Source V. Hartikainen
Subtle scratches on a light gray background.
Source Andrey Ovcharov
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
You guessed it – looks a bit like cloth.
Source Peax Webdesign
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Zero CC tileable hard cover cells, skin like, book texture. 4K, Scanned and made by me CC0
Source Sojan Janso
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
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 free pink background pattern.
Source V. Hartikainen
From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
Vector version of a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Alternative colour scheme. 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