Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
Prepared mostly as a raster in Paint.net and vectorised.
Source Firkin
Prismatic Groovy Concentric Background 2
Source GDJ
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
Embossed lines and squares with subtle highlights.
Source Alex Parker
One more updated pattern. Not really carbon fiber, but it’s the most popular pattern, so I’ll give you an extra choice.
Source Atle Mo
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Neat little photography icon pattern.
Source Hossam Elbialy
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
From a drawing in 'Hundert Jahre in Wort und Bild', S. Stefan, 1899.
Source Firkin
Black brick wall pattern. Brick your site up!
Source Alex Parker