A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The edges of all the red objects line up either vertically or horizontally, but it doesn't appear so. Made from a square tile that can be got by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
This is the remix of an OCAL clipart called "Art Nouveau ornament" uploaded by "microcosme".Thanks.This is a seamless pattern of an Art Nouveau ornament.
Source Yamachem
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
Vector version of a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Black brick wall pattern. Brick your site up!
Source Alex Parker
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
This seamless web background texture looks like gray stone. It's great for using as a background image on web pages, or on some of their elements. Anyway, I hope you will find use for it.
Source V. Hartikainen