Hiya Jon
A bit late with the reply (I don't get out of the lounge much!!), but hey, better late than never.
Shark is a popular brand over here. I understand it's a very good helmet.
Over here they tend to be favoured by the 'power ranger' riders who go for, shall we say, 'bright' clothing - and even brighter lids.
Don't think you'll go wrong with one.