From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Seamless Prismatic Quadrilateral Line Art Pattern No Background
Source GDJ
Abstract Tiled Background Extended 6
Source GDJ
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
Prismatic Geometric Tessellation Pattern 3 No Background
Source GDJ
Black brick wall pattern. Brick your site up!
Source Alex Parker
Utilising some flowers from Almeidah. To get the unit 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 seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-brown.
Source Yamachem
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
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
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry