Download the pattern. See my notes below for adjustments.
I had sock yarn in my stash, Deborah Norville Collection: Serenity to be exact and I decided to use it. This hat is made with one skein of Thyme DN104-01. I used number 2 needles (circular and double-pointed). I altered the pattern for the decreases at the top. The pattern suggested a knit row between every decrease row. I did that only halfway through the reduction process. Additionally, I changed up the pattern on the ear flaps. After 4 rows of seed stitch, I moved to straight knit stitch for the decrease rows.
I made a triangle-shaped scarf to match the hat. I can wear them together or separately. What I really like about the hat is that it is so lightweight I can fold it and put it in my coat pocket.