We designed the Wet Suits for the Mavics so Moisture should no longer be a problem in any way as the moisture in fog in no way compares to that of a pouring rain so flying in a fog is childrens play compared to a hard pouring rain.
The equation of moisture changes when you have the Battery Sealed Air Tight .
The extra 4 degrees of heat is not a problem compared to that of moisture in the Power Button .