An abstract texture of black metal pipes (seamless).
Source V. Hartikainen
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
There are many carbon patterns, but this one is tiny.
Source Designova
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
I have no idea how to describe this one, but it’s light and delicate.
Source JBasoo
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
A repeating background of thick textured paper. Actually, it turned out to look like something between a paper and fabric.
Source V. Hartikainen
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
The classic notebook paper with horizontal stripes.
Source Are Sundnes
The image depicts meshed silhouettes of various things.The original image is an OCAL clipart called "Enter FOSSASIA 2016 #IoT T-shirt Design Contest" uploaded by "openclipart".Thanks.
Source Yamachem