Sort of reminds me of those old house wallpapers.
Source Tish
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
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
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Nicely executed tiling for an interesting pattern.
Source Ignasi Àvila Padró
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
A repeating background of beige paper with vintage look. Repeats to infinity, as usual.
Source V. Hartikainen
Prismatic Snowflakes Pattern 3 No Background
Source GDJ