A seamless pattern formed from a sports car on clker.com. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
From a drawing in 'Handbook of the excursions proposed to be made by the Lincoln Diocesan Architectural Society, on the 27th and 28th of May, 1857', Edward Trollope, 1857.
Source Firkin
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
Dark blue concrete wall with some small dust spots.
Source Atle Mo
Retro Circles Background 8 No Black
Source GDJ
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
Sometimes you just need the simplest thing.
Source Fabricio
One more sharp little tile for you. Subtle circles this time.
Source Blunia
A background pattern with green vertical stripes. A new striped background pattern. This time a green one.
Source V. Hartikainen
A lot of people like the icon patterns, so here’s one for your restaurant blog.
Source Andrijana Jarnjak
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
Seamless Prismatic Quadrilateral Line Art Pattern No Background
Source GDJ
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
The image depicts a seamless pattern which was made using stripe-like things including borders.I used OCAL cliparts called "Blue Greek Key With Lines Border" uploaded by "GR8DAN" and "daisy border" uploaded by "johnny_automatic".Thanks.
Source Yamachem
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Black brick wall pattern. Brick your site up!
Source Alex Parker
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin