All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.
Source Atle Mo
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 pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Adapted from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Number five from the same submitter, makes my job easy.
Source Dima Shiper
By popular request, an outline version of the pentagon pattern.
Source Atle Mo
Abstract Tiled Background Extended 12
Source GDJ
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
A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
An alternative colour scheme to the original seamless pattern.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
High detail stone wall with minor cracks and specks.
Source Projecteightyfive
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
Prismatic Chevrons Pattern 5 With Background
Source GDJ
A seamlessly tileable pink background texture.
Source V. Hartikainen
Black And White Floral Pattern Background from PDP.
Source GDJ
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8