So far they've passed the bathtub test. They do note in the manual that the headset jack cover must be fully inserted. It's really tight, so if you don't press it in hard enough, water will get in.
These are the radios I have. So far the only complaint is that they only charge in the stand, and I would like to be able to charge in the truck. I'll be taking them on a canoe trip next week, so the waterproof-ness may get a good test.