Jeep suspension seats? (what makes em any better)

[bennylava]

I was thinking of getting some suspension seats for my jeep. I'm not actually one of those hardcore off roaders, and I think that when it comes to trail difficulty, "medium" grade trails are as high as I'm interested in going. But mainly light trails, and the trails that are in between "light" and "medium".

That said, I still like as soft of a ride as I can get. Of course in a jeep that won't be much, but why not take what you can get. Probably make it nicer going down lousy roads too. So what actually makes a suspension seat? Too look at them, it appears that its extra foam. I'm imagining some kind of springs or something that are made into the bottom of the seat. But something tells me that ain't the case.

So what makes a good suspension seat? How is it different than a regular seat that just has some extra padding that you put in there?