Warm and durable sock yarn
This is the broken seed pattern I found on Ravelry. I usually use Heritage or Cascade Fingering weight yarn. They are both reasonably priced. I combine them with a variegated yarn which makes for an interesting design pattern. The trick is to knit with a zero or number one size needles so the design is more pronounced. Additionally, when a lace weight with mohair and silk is on sale, I will knit up a vanilla sock pattern on number three needles using the Heritage or Cascade fingering weight...