This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
Classic vertical lines, in all its subtlety.
Source Cody L
Traced from a drawing in 'Household Stories from the Collection of the Brothers Grimm', Wilhelm Carl Grimm , 1882.
Source Firkin
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
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 series of 5 patterns. That’s what the P stands for, if you didn’t guess it.
Source Dima Shiper
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
Geometric triangles seem to be quite hot these days.
Source Pixeden
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
This one looks like a cork panel. Feel free to use it as a tiled background on your blog or website.
Source V. Hartikainen
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen