My family bought me a pair of those Moto-Skiveez (Adventure) underpants yesterday for my birthday, wore them out to day for a 80 mile ride, what a fantastic difference they made to the comfort of the ride. They do feel a bit weird when you just walk around as if you've done a poo.
They've stopped the numb-ness in my back side & my coxis hurting after a few miles.
I would say that they must be one of the best rider aids on the market for comfort, but a bit expensive £55.
One happy rider
Markrob