A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Seamless Prismatic Geometric Pattern With Background
Source GDJ
Prismatic Polyskelion Pattern No Background
Source GDJ
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Geometric triangles seem to be quite hot these days.
Source Pixeden
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Seamless pattern made from a tile that can be obtained in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A light gray background pattern with seamless fabric-like texture and almost unnoticeable stripes.
Source V. Hartikainen
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i
Source Firkin
Floral patterns will never go out of style, so enjoy this one.
Source Lasma