This Gore-Tex infinitum lined fleece hat from Haglöfs is made using recycled materials with extra protection coming from the Gore-Tex Infinium layer providing extra wind stopping capabilities to keep you warm. It's got clever laser cut perforations to allow you to hear better in use and it packs down nice and small when you don't need it. It will surely be a trusty companion whether up a mountain or just on a windy city street. 

It comes in two sizes so if you think you've got a regular sized noggin then go for S/M (54-57cm) but if your bonce is a little on the larger side opt for M/L (57-60cm)