This hat is what I think of when I see the words "stacked shell stitch, but I don't know if that's what it is. I have a hard time seeing the shells in these patterns. Gives it its own, nice look, for sure.
Free crochet pattern for a cross-over long dc hat. The hat is a small size, but you can increase the size for a custom fit. Everyone always says how cute this hat is, so here is an almost identical pattern.