Waders- Sizing Question

[mayday1019]

I really can't think of a way that won't make this question seem inappropriate, so I will just come out and ask...

When you guys wear waders, do you typically wear pants underneath or just skivies??

The reason I am asking is because I came across a pair onsale that fit well, but there is no way I can possibly put them on with jeans or anything else than long underwear.

Thanks!