It was only a joke about the colour. But I like Blue, gray and yellow.
And yes the snowmobil helemets are fully waterproof. Usually. if you make an order for a helmet it can be done as you like it.
In fact, in the US (I buy most of my gear from there and SAfrica as these places have good value for maney goods) you can specify how you actually want the helmet to be like, water proof, bulit proof, wind proof, what color or combibation of colours etc etc.
However, a RNLI or equivalent helmet does not necessarily mean that is a racing boat helemet.
The cost of a helmet in the US and SAfrica with intercom is MUCH LESS than GBP 450 (I think this is how GECKOs are forgive me if I'm wrong) and your helmet is custom made.
Anyway, is what anyone prefers. I think that in Europe and particularly in the UK quite a few items (not to say everything) are OVERPRICED, people buy them either because they do not bother to ask arround or they do not care how much they spend and most of the UK money grabing manufacturers, importers, producers etc DO NOT DESERVE ANY SUPPORT (see and compare prices of cars, moto bikes, RIBs, ropes and anchors (major price differencial), VHFs, GPSs and other goods to many to mention between the UK and other European countries not to mention the US and SAfrica).
I think when we go to Plymouth you should check out my helmet and see what you think. I will deffinately check out a GECKO if I get a chance.