Lewsky by Kiyomi and Sachiko Burgin. Part balaclava, part hood, this snuggly topper is a kind of sweater for your head and also slightly reminds me of olden days deep sea diving helmets, in a good way. Pick an aran or heavy worsted like Croft, WYS BFL or Rauwerk, or add some mohair to a regular worsted like Gilliatt or Dehesa. For more of a snug sock-ish hood for your head, we love the new Foster Hood by Fabienne Gassmann