Um...maybe someone else knows - lol, at the moment the only wool I wear is during the winter, where it gets sweated on but it doesn't get "wet" in the same way.

I know wool goes a lot longer before it stinks because you've been wearing it to long (weeks, apparently) - but I don't know what happens if you get it wet. I think I've read something about it smelling a bit like a sheep, true.

I know I wore my regular bike tights swimming once, and they were surprisingly comfortable on the ride back (in fact I hardly knew they were wet), and I didn't notice anything about them stinking.

I can say that synthetics have a reputation for keeping you warm when wet, just like wool. I know I've read that you have to wash them even more often than cotton to keep them from reeking after you've worn them, though. Lol, maybe kind of a tradeoff...