Well it has certainly got cold out there! I can't remember having snow so early in winter - usually it seems to come after Christmas. I'm finding that even in the house I get cold and if you are suffering from hair loss I would recommend going for one of our warmest hats - the lovely microfleece. It's light to wear but really does the trick in keeping you nice and warm.
For a dressier look, the rich velvets work really well too, with that extra bit of style!