This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Element of beach pattern with background.
Source Rones
Kaleidoscope Prismatic Abstract No Background
Source GDJ
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Dark blue concrete wall with some small dust spots.
Source Atle Mo
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin