I got an Icom M1 submersible about five years ago. I chose it because it was rated highest by Practical Sailor at the time. While I have been swimming with it, and it still works, I have been told to always use a pouch to insure it's working/extend it's life. I wouldn't buy the same radio again, because it has knobs for channel selection, and this makes it very hard to toggle through the channels when it's in the pouch. I'd go with one that has toggle buttons. While I sometimes have trouble hearing what people are saying, I don't believe it has to do with the pouch. I think it's to do with the range and line of sight reception. I was able to hear others fine when I held it up to my ear during Fleet 448's 2002 Block Island Sail. Winds were 25-30, with seas 4-6'. That seemed like a pretty good test to me!