This one needs to be used in small areas; you can see it repeat.
Source Luca
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Derived from a drawing in 'Elfrica. An historical romance of the twelfth century', Charlotte Boger, 1885
Source Firkin
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
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
"Beige Stone", Tileable Texture.
Source V. Hartikainen
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda