I'll stick this here. Does anyone want to comment on this?:
Put it in hot water for a while, rinse it out and shape it on your head. Once thats done take it off carefull and put on radiator. Failing that, get a smaller one.
But for fck sake dont walk about with a two way stretch in it like some pathetic tankies or RCT used to do. It gets pulled down the righthand side not both. There was nothing that wound me up more than a muppet tankie or other Corps person with a two way stretch in his beret.