This hat has a crocheted crown, and a knitted brim.

The Hybrid Hat is worked from the crown down to the brim, so the crown will be increased to the full hat circumference. For these increases to spiral, we’re simply stacking one round of increases on top of the previous round in the same way that you would stack decreases on a bottom-up knitted hat. You will work the increase (2 sc in the same stitch) in the 2nd stitch of the increase from the round below. Once you’re comfortable spotting the increases, you may not need stitch markers, but if it’s helpful, you can put a split ring marker (or coil-less safety pin) in the 2nd stitch of each increase, and just move it up each round to keep track.