So this is a light-weight hat with a pretty eyelet pattern. You will need one 16” circular needle in size 3 to knit it, as well as a set of double pointed needles, also in size 3. Also, I was able to make this hat with one skein of yarn, but I only have a couple of yards left over, so it may be prudent to either knit with another similar-weight yarn, or to have two skeins on hand just in case.