I just finished the first sock made from Mini Mochi by Crystal Palace Yarns. The colors are every bit as gorgeous as those of Noro, and the yarn is SO much softer. If it holds up well in wearing, so long to Noro when I want color. It is single ply, 80% Merino and 20% nylon, color 108. Except for the problems I had with its being kind of splitty (and that could be my fault), I loved working with it. It's just so wonderfully soft!
This yarn is kind of hard to find, but if you can get your hands on some, give it a try.