The pattern is another from Wendy Johnson's Socks from the Toe Up, the book I learned the technique of toe up socks from. I love coming back to this book for sock patterns again and again. This pattern was Mock Cable Socks, and it was perfect for travel because the pattern was simple but entertaining.
The yarn used for these socks was some handspun I finished a few years ago. I do not remember the specifics of the dyer or fiber type (likely because I failed to share it here when I finished it!). But it was a sweet gift from Lisa (Wickedly Artsy). The yarn itself was perfect for socks and the resulting socks feel like they'll be sturdy and warm for years to come.
I just find it so satisfying to knit up a project in my own handspun. The resulting product is just that much more special.