Bonus! Your touch screen will still work through the case.
Promising review: "I purchased this case for a canoe trip with a friend, and as luck would have it, we flipped our canoe. Being the rebel that I am, I chose not to wear my phone around my neck, so it ended up at the bottom of the river. I just assumed it would be discovered a thousand years from now and placed in a museum as an ancient artifact. Fast-forward to earlier this week: I was contacted by a sheriff's office diver and guess what he found? Yup, my phone case with all of the contents intact and dry as a bone! He had to cut the case open, but there was not one single drop of water in it and he ended up purchasing a case for himself because he was just that impressed!" —Julie McDonald
Get it from Amazon for $6.99+ (available in 14 colors).