Helly Hansen Ocean Racing Suit is perhaps the way to go if you are planning to take your bike through the high seas, presuming you know swimming very well. The gear comes manufactured in some of the best known materials to man and it is waterproof, breathable and is a single piece cloth.
I literally have no idea how one could get inside it but there apparently is a “pee hole” which is dubious and could be used for other purposes. It comes with double neoprene and also has space for the neck and cuffs. It even comes with built in socks and knee reinforcements. Of course, it does not come with space for your iPhone or some other gadget and you would certainly not be carrying your phone with you when you walk inside the oceanic waters, would you?
The Helly Hansen Ocean Racing Suit costs $3,000 ad I am not sure if I want to buy his really.¬ Nevertheless, you could try and get it for yourself if you have loads of money and if you like spending on luxury products like this.