32--I see by your avatar info that you may be a relatively new Stormtrooper. If you are using the OEM seat and you find it uncomfortable (which so many of us do) your problem will likely not be solved by adding some sort of pad on top of the seat. IMO, the OEM seat foam is too soft, for one thing, so it doesn't support well, and compresses quickly, making it hard. Butt burn sets in quickly, as does the dreaded "numb crotch," which is caused by the odd angle the seat forces you to sit at, shoving you into the front rise of the seat, with the resulting numbness setting in.
For most of us, the answer lies in an aftermarket seat. A few have the right shaped butts, so a Corbin seat works for them. Sargent makes a very good seat that works well for many Strommers. I have a Russell Daylong Saddle and it is fabulous. It is a true day long, distance seat. It's not cheap, though, but well worth the cost. There are a few VStrom riders for who the stock seat works, some as is, and some with a pad of some sort. Personally, I feel that the answer is to modify the seat, not put something on top of it.
There are several good aftermarket, custom seat makers out there that make seats for the VStrom. I can't endorse or recommend any of them specifically, however I can tell you that I love my Russell Daylong. I'm sure that as other chime in on this thread that they will extoll the virtues of whatever seat they have and love. Hope this helps answer your question.