With how much Corbin loves their seats (as witnessed by the price they sell them for) you'd think that waterproofing would be an inherent characteristic
I've never understood that about aftermarket motorcycle seats. Here is a vehicle (motorcycle) that is fully exposed open to the elements and they elect to not waterproof the fabric/leather/material/whatever is used for the seat... I have had that that same issue with Ultimate, Seat Concepts, etc....