I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Seamless pattern inspired by a drawing on Pixabay. To get the tile this is formed from, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A seamless canvas texture for using as background on websites. Colored in pale tones of brown.
Source V. Hartikainen
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
An alternative colour scheme to the original seamless pattern.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
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
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
A subtle shadowed checkered pattern. Increase the lightness for even more subtle sexiness.
Source Josh Green
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
Continuing the geometric trend, here is one more.
Source Mike Warner
Gold Triangular Seamless Pattern No Background
Source GDJ
Classic 45-degree pattern, light version.
Source Luke McDonald
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
The image is a remix of "edo pattern-samekomon".I changed the color of dots from black to white and added BG in light-yellow.
Source Yamachem
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
Sort of reminds me of those old house wallpapers.
Source Tish
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf