Ecotree Baby Trial Pack 2 for $39
All in Two Cloth Nappies are a system comprising of a shell and an insert snapped into the nappy shell which can be pulled apart into two pieces for washing.
All in Two nappies also allow the possibility of using the outer again with a fresh set of inserts provided the outer isn't dirty. You just remove the first set of inserts and snap a new set in.
For a quick rundown on All in Two Cloth Nappies please see the video below.