The warrior's tail

[maulkin]

Hair appears to have great symbolism in the Six Duchies. I am thinking of the custom of shaving a particular portion of the skull as a sign of bereavement and, of course, the "warrior's tail".

But what does a warrior's tail look like, exactly? Is it just a simple pony tail or a topknot? Are the sides shaved? What happens if you go bald - are you prevented from being a warrior (perhaps you are then considered to be too old)?