To make this knitted Aviatrix baby hat, I used blue, DK Weight yarn (Weight 3) that my brother brought me from Peru. I believe that it is baby alpaca.
I used the pattern here. It was a very good pattern, with pattern variations based on the yarn weight you planned to use, as well as different sizes for hats. It also had a glossary with some explanations of techniques. I did need to watch some YouTube videos, but the pattern recommended doing that.
This hat was knit on straight needles, and not in the round. I think it turned out really well.