Amazing what a small change like that can make in the construction of a hat! These are supposed to be super windproof, and I knit them out of 100% wool. Cascade Yarns 220 Superwash. The "brim" of the hat is actually a two layered tube, the concept being the body's heat will get in the tube and provide super warmth.
I made these hats for my son Paul and his girlfriend JoJo. Extraordinary wilderness and outdoors enthusiasts they are, and so need warm hats. For spring break they went to Kentucky to climb rock cliffs and I knitted these hats especially for that trip. In spite of the fact that it was 80 degrees out, they donned the hats and sent a picture.
This is my favorite picture of the hats. :)