From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Retro Circles Background 8 No Black
Source GDJ
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
A criss-cross pattern similar to one I saw mown into a sports field.
Source Firkin
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 free seamless background with pink spots.
Source V. Hartikainen
The following orange background pattern resembles a honeycomb.
Source V. Hartikainen
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
Prismatic Polka Dots 3 No Background
Source GDJ
Old China with a modern twist, take two.
Source Adam Charlts
This is a hot one. Small, sharp and unique.
Source GraphicsWall
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
A seamless pattern with a unit cell drawn as a bitmap in Paint.net and vectorized in Vector Magic.
Source Firkin
Fix and cc0 to get the tile this is based on.
Source SliverKnight
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Geometric triangles seem to be quite hot these days.
Source Pixeden
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
The image depicts a seamless pattern which includes hexagonally-aligned gourds with BG in light-brown.
Source Yamachem