We continue without forgetting everything that smells of vectorized, and it is important to have elements of this type when working with designs in monstrous resolutions and suitable for any type of screen or printing.
After the jump are the previews of the patterns that you can download in this post, and the truth is that I recommend it because to be at zero cost they are really worked, it is appreciated that they are of quality.
They come in .ai format and are compatible with any Illustrator CS, although I do not assure you that in versions prior to CS4 they work because I have only tried it in that version.
Source | colorburned
Download | Patterns