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The "Rule of 50":
An average adult person has a 50/50 chance of surviving a 50-yard swim in 50-degree F water.


OK, I'll accept that as true. And if it is, I need a wetsuit.

And my problem with wetsuits is this: I'm a Luddite, and I have no idea what I need, there's so many kinds of wetsuits, I'd rather not pay more than makes sense, and I have no idea what I need to do to make sure it fits. Can I buy something like that mail order and know that I will get the right size?

Jonathan