Comments about Blue Reef Divers Watchman's Cap:

Came free with my other purchase, it is a light-weight warm fleece cap. Because it is fleece, it is very light weight which makes it good for travel and also nice and soft. It can cover your ears which obviously is important for warm hats. Only thing I haven't tested is how much wind it lets in, and although fleece will stay warm if wet, it would not be ideal to wear in the rain.