CC0 and seamless wellington boot pattern.
Source SliverKnight
White circles connecting on a light gray background.
Source Mark Collins
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Background pattern originally a PNG drawn in Paint.net
Source Firkin
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Prismatic Geometric Tessellation Pattern 3 No Background
Source GDJ
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A browner version of the original weathered fence texture.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A free background tile with a pattern of pink bump dots. This background tile is sweet! Moreover, it's designed for use as website backgrounds.
Source V. Hartikainen
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper