It would seem that if you got the seat covering sealed so that it did not leak at all, it would be the similar to plastic. Meaning it would not breath. A lot of extra work to get the same result.
I second that plastic between the cover and the foam be an option.
I liked my Ultimate "lowboy" on my Valk. It looked cool and lowered me into the bike more. But, it still hurt after a couple of hours in the saddle.
Even with that, if Ultimate had made a lowboy for the F6, I would have bought it over the Mustang that I did get.
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