A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
This one needs to be used in small areas; you can see it repeat.
Source Luca
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A grayscale fabric pattern with vertical lines of stitch holes.
Source V. Hartikainen
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
A comeback for you: the popular Escheresque, now in black.
Source Patten
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
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
A free pink background pattern.
Source V. Hartikainen
An alternative colour scheme to the original seamless pattern.
Source Firkin
Background formed from the original with an emboss effect
Source GDJ
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin