These are done! It's the Diagonal Rib Sock by Ann Budd. Easy to knit and lovely when finished.
I used BMFA STR lightweight in the Sugarplum colorway. I have always loved working with this yarn for the Chevron Scarf, but I really love it for socks! Wow...it's so soft on your feet.
Now, I'm starting the Garter Rib Socks in Sensational Knitted Socks. I'm using STR lightweight again in the Carbon colorway. How fun!