From the website:
A sock inspired by Sidna Farley’s 2003 Colorado Knitting Camp

The construction of this sock begins by making 3 color blocks to go around the cuff. Diamonds are made to fill in and the sock is worked down from there.

Kit is also available with fingering weight 100% wool Mer-made machine washable yarn, shown below. The kit comes in Fuchsia with Joyce’s Choice for contrast (shown), or in Navy (second from left in yarn array) with Tropical Fish (far right) for contrast.