Snowboard-proof iPhone…

Heya, I just got the iPhone 5 and experience has taught me that despite my old iPhone being in the goggle pocket of my jacket it still gets moist when the weather is shitty. It never died from that but moisture can’t really be good for the phone 🙂 I’m looking for a case that I can use even during the bad days on the slopes (waterproof?). My only “condition” is that I want it to be low profile