This Christmas season I find myself making a lot of hats. They are quick knit and everybody loves a good hat. As a knitter, though, it's nice to have a little variation every once in a while. So I was delighted when I learned how to knit a double brim! I think it makes the hat look more polished, and it's fun to knit! So here's how you do it...
Make sure that you cast on using a provisional cast on. Any method will do, but I prefer Judy's Magic Cast On because then you don't have to go back and pick up all of the stitches on the cast on edge. (Tip: Use a 24" or 32" circular needle as your provisional cast on needle). Casting on with a provisional cast on is essential because we will need live stitches on the cast on edge later!
Work your hat in pattern until it is double the length you want your brim to be. So if you want your brim to be 2", then knit until your piece measures 4".
Fold the brim in half with the cast on edge on the inside.
Line up the first stitches on both needles (the cast on edge and working edge). Insert your right needle into the first stitch on the outer needle as if to knit, then insert your right needle into the first stitch on the inner needle as if to knit. Knit, pulling the yarn through both needles. You have just joined the two stitches into one!
Continue in this manner around the entire row. Once you complete the row you should have the exact number of stitches that you casted on. Continue working the rest of the hat in pattern!