The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
Remixed from a drawing in 'Line and form", Walter Crane, 1914.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'La Principauté de Liège et les Pays-Bas au XVIe siècle', Société des Bibliophiles Liégeois ,1887.
Source Firkin
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
Here's a dark background pattern that contains a steel grid pattern as a texture. Use it as a website background or for other purposes. It's free!
Source V. Hartikainen
Alternative colour scheme for the original floral pattern.
Source Firkin
Colorful Floral Background No Black
Source GDJ
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran