I use a mountain cap from Lowe Alpine, the brim is stiffer than the Berghaus one. Certaintly warm enough for the last few winters up here if it's been particularly bad I've augmented it with a merkalon headover from Penrith survival. On it's own the headover can be used as a balaclava, scarf(of sorts) or rolled up to a be a hat.
Wow this is an old thread back from when we had those couple of bad winters by the looks of it.
but anyway I like to layer up. Merino Buff and a Fjallraven beanie. Chop and change as weather and activity require. I am after something more rain proof though. Despite the general practically of being a baldie, sun and cold are equally annoying. I have saved thousands of pounds in haircuts and shampoo though so I can justify a few hats