These are Samantha's Fixation Socks which is a free online pattern. It's a mock cable with a four row pattern repeat, really easy to learn and quick to knit up. The pattern tells you to do 'your favourite' heel and toe so it helps to have other Fixation patterns to hand, I used the heel from Broadripple Socks and the toe from Pretty Comfy socks and it worked just fine.
I used Cascade Fixation in pink variegated that I bought off Ebay. Now I just have to decide which pattern to cast on for next!
finally waking up