This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
The classic notebook paper with horizontal stripes.
Source Are Sundnes
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A free grid paper background pattern for using on web sites.
Source V. Hartikainen
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'Real Sailor-Songs', John Ashton, 1891.
Source Firkin
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
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
Prismatic Abstract Background Design
Source GDJ
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
Alternative colour scheme for the original floral pattern.
Source Firkin
Zero CC tileable Crackled Cement (streaks) texture, photographed and made by me. CC0
Source Sojan Janso
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin