Prefolds or Trifolds & Which Fabric to Use?

[alimumma]

Thanks girls,

Raven - I PM'd you this morning as I wasn't sure if anyone would see my post and you have answered my question about fabric.

The other thing I was wondering was about the fold - if I should do a 2 x 4 x 2 prefold or just a 30 x 30 cm trifold of 2 layers of bamboo - or even just one layer if this would be absorbant enough. My main concern is that they work well as a NB nappy and that I can get them dry through a wet winter.

My other question is about fleece - not sure if I should use this as a liner for NB or not? Doesn't it sort of defeat the purpose of having no synthetic fibres against bub's skin?

[nickel]

What's the difference/definition of a prefold/trifold?
Christy gave me some flat squares that you fold into three (I'm guessing trifold)
But what's a prefold? and 2x4x2? Getting technical now girls!!