Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.
Source Paul Phönixweiß
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
A nice and simple white rotated tile pattern.
Source Another One
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Prismatic Polyskelion Pattern No Background
Source GDJ
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
A repeatable image with dark background and metal grid pattern.
Source V. Hartikainen
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo