Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Kaleidoscope Prismatic Abstract No Background
Source GDJ
A heavy hitter at 400x400px, but lovely still.
Source Breezi
A free black metallic background pattern. Here's a new pattern I made that looks metallic.
Source V. Hartikainen
A comeback for you: the popular Escheresque, now in black.
Source Patten
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A cute x, if you need that sort of thing.
Source Juan Scrocchi
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Prismatic Triangular Background Design Mark II 5
Source GDJ
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A classic dark tile for a bit of vintage darkness.
Source Listvetra
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/
Source Yamachem
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Abstract Tiled Background Extended 10
Source GDJ
The image is a seamless pattern which is derived from a vine .Consequently, the vine got like dots via vectorization.The original vine is here:jp.pinterest.com/pin/500744052301410188/
Source Yamachem
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
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
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin