As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
From a drawing in 'Codogno e il suo territorio nella cronaca e nella storia'', Gio and Giarella Cairo, 1897.
Source Firkin
From a drawing in 'Danmarks Riges Historie af J. Steenstrup, Kr. Erslev, A. Heise, V. Mollerup, J. A. Fridericia, E. Holm, A. D. Jørgensen', 1897.
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
Might not be super subtle, but quite original in its form.
Source Alex Smith
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
You guessed it – looks a bit like cloth.
Source Peax Webdesign
Light and tiny, just the way you like it.
Source Rohit Arun Rao
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin