I would totally buy that hat to go along with my pullover! I know there are quite a few asking for a brim, but I personally like it as is. I don't know if it would be feasible for you to have both styles (brimless and brimmed)... Also, if it were possible to make the hat out of any color pattern you have so it can match the various patterns available for chest garments, that would be amazing!
Thanks for coming up with new things for us! I know a nice warm hat would do wonders where I hunt.