2 and 3 part systems

2 part systems (Eg. Flip, Gnappies, Best Bottoms, Grovia Hybrid) You reuse the outer shell or cover several times and only need to change the insert - as long as it's just wet.

• with a flip you slide the insert into place

• with Grovia & Best Bottoms there's a popper and you click them in

• with Gnappies there is a pouch to keep the insert in place

There's less washing with these, less bulk to lug about in a changing bag and they tend to be a slimmer fit, though they may need changing more often and if you have a baby who poos a lot then the advantage of not having to change the outer shell may not actually happen! Hybrids can also be used with disposable inserts which are very popular and handy for holidays.Each of these systems differs so you cannot mix and match.