I designed and knit a warm collar by using our own AAW snag grey yarn (40% our own ethic produced arctic angora wool, 40% FinnSheep wool, 10% arctic dog wool and 10% nylon). I used HorseshoeCables to decorate the front side.
The flap of the back side has as many stitches as the front side flap but I wanted it to stand wider and protect shoulder area better. That's why I used only the basic stitch knit when knitting. Every stitch is just knit with that on each row so it forms out this structure instead of plain and doesn't get rolled up from the edges. I also crocheted the flap edges to prevent it to get rolled up.