Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A floral background formed from numerous clones of flower 117.
Source Firkin
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
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
Prismatic Snowflakes Pattern 3 No Background
Source GDJ
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
From an image on opengameart.org shared by rubberduck.
Source Firkin
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.
Source Paul Phönixweiß
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin