Sock-a-Long Challenge

If you plan on making the Jaywalkers for your challenge sock, there's something you need to know. The nature of the stitch pattern does not allow for any "stretch" or "Give" when the sock is put on. So, even though you may have an 8 1/2" circumference foot, you may want to make the larger size anyway. And the thing is, you won't even know they're too tight until you get ready to start the heel. So a shorter cuff is also helpful in ensuring a good fit.
I would recommend a yarn like Knitpicks Dancing, or Cascade Fixation. Both have some great stretch to them that this pattern can only benefit from. And pick something variegated or self-striping! This pattern shows that off well, as you see.