Why not sprinkle silica gel into the personal survival cartridge (what I call the tins/etc carried on you)...not much mind you but just enough to fill in some voids....this as many of you know can be had at Walmart in the art section in a large large container for around 6 or 7 bucks....since most of my activities involve a sea kayak I end up sprinkling about a half teaspoon into the voids of my Otter box<br><br>