This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Zero CC tileable seed texture, edited by me to be seamless from a Pixabay image. 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. 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
f you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
An alternative colour scheme for the original background.
Source Firkin
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin