I either had to buy a Mustang seat or take singing lessons. Seeing as I hate opera I bought the seat.
The AirHawk is what you seek. It's sold at WingStuff. Get the "standard cruiser" size. In June of last year, I took a 2,000+ mile trip using this. Not only is it a great to sit on, it also keeps the "jewels" nice and cool in hot / humid weather. Not cheap, but worth every penny.
x2. I don't use it on the F6B, but I had it on my 2004 VStar. The original seat on that bike was unbearable after 40 minutes or so. I added the AirHawk R and it was great. The downside is that I had to buy a taller windshield - the Airhawk will raise your seat height an inch or two - which was just enough to put my dome up into the wind and create intolerable buffeting and noise.
I am keeping the AirHawk when I sell the VStar - I may want to use it in the future for the sake of this -->
Former Ride:
2013 F6B Standard, black; sold 7/2019
Latest Addition:
2016 Gold Wing Level 3, red; SCT transmission stuck in manual mode
2019 Miles:
7,900 as of 10/6