The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
Almost like little fish shells, or dragon skin.
Source Graphiste
Seamless pattern formed from a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Prismatic Abstract Background Design No Black
Source GDJ
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
Remixed from a PNG that was uploaded to Pixabay by k_jprather
Source Firkin
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Here's a brown background pattern with subtle stripes. I hope you'll like the color. If not, feel free to change it using an image editor, if you know how of course. Personally, I'm using GIMP to create these backgrounds.
Source V. Hartikainen
A seamless web texture with illustration of pale color stains on canvas.
Source V. Hartikainen
This one is amazing, truly original. Go use it!
Source Viahorizon