What is THE best underwear for flabby tummies?

[moominmamama]

I need knickers!!!!

I'm about a size 22/24 with a belly apron that sits on my lap and another roll of fat between that and my boobs.

My ideal pants would:
Not roll down
Be made of natural fibres
Not push the flabby bits tightly together (hygiene/sweatiness)
Give a nice shape
Not be tight like body shapers

I know some of my idealisms work against one another...

I'm about the same size as you, and definitely have a large, overhanging pouch. I buy KMart Australia's pants - the bamboo ones are nice and soft. (I know, not something sold in Britain, it's more the type of pants that might be helpful). I don't get ones that give any sort of shape, though, because pressure on my belly is very uncomfortable. I just wear longish tops or jumpers.