I personally tested these this summer on a long haul where I rode for two and half hours in hard rain. When the sun came I just left it on and the seat and cover were dry when I took my rain pants off (a couple hours after I was sure it would not rain again!)
Where it really shined? I left my bike under a hotel awning that apparently was directly under a down spout, came out in the morning and the seat cover was sopping wet! I removed the cover and the the seat was completely dry which made for a great ride for the day. Jim did a real nice job on his R&D in getting the product together. He is not new to the world of comfort items for out-door sports.
What made me think about this today was I washed and waxed my bike yesterday (without out the seat cover)and went for a ride. When I got to the gas station I and got off the bike? The seem lines of the seat had made my butt wet. So it is no marketing line, it does keep you from getting wet.
eddy
