My first bike had a banana seat on it. It was, quite possibly, the most uncomfortable seat I have ever propped my buttocks upon. The base was steel, and the cover was tiger-striped vinyl.
In between was the thinnest, most ineffective foam known to man. I think the Russians developed that foam for their space program, just like NASA developed Velcro for ours. Velcro was developed to hold things together. I suspect that the KGB had uses for the Russian space foam.
Still, I loved that seat. The discomfort was fleeting, because I stood up a great deal of the time. This was due to a combination of short crankarms, high gearing and the fact that I had legs like little toothpicks. And, not nice new toothpicks, either, but toothpicks that some highway patrolman has chewed all through a car chase and then spat out on the road just as he was calling the ambulance to peel a couple of drunk-driving teenagers off of an old oak tree.
No yellow ribbon on that tree, either, let me tell you.
But, I digress...
Mostly, I liked the looks of that seat. The tiger stripes looked bitchin' with the gold paint of the Spyder Bike, and the chrome sissy bar made me feel like a Hell's Angel (only without the drug dealing, senseless violence and social isolation).
I had a purple banana seat on my Buzz Bike, later. It had a tufted cover with about 3 times as much Russian Space Torture Foam in it, but it was no less uncomfortable.
At least it was a hideous color, though.