The stitch pattern I used for these top down socks is Quilted Lattice from Barbara Walkers Treasury of Knitting Patterns Vol. 1.
So I've decided to call these the Mexican Waters Lattice Socks.
Mexican Waters Lattice Socks
The instructions are written for knitting on 2 circular needles, but are easily adjusted for any method of sock knitting.
Close up view of stitch pattern
Click here for the PDF file: