Abstract Geometric Monochrome Pattern Prismatic No Background
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
The image is a design of blue glass.How about using it as background image?
Source Yamachem
White little knobs, coming in at 10x10px. Sweet!
Source Amos
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Derived from a drawing in 'Historiske Afhandlinger', Adolf Jorgensen, 1898.
Source Firkin
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Prismatic Snowflakes Pattern No Background
Source GDJ