Nappy Systems Explained
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All In One (AIO)
Absorbent inner is attached to waterproof outer shell
Very easy to use (most like a disposable)
Slower to dry than other types
Generally, a more expensive option
All In Two (AI2)
Absorbent inner pops on and off the waterproof outer shell – function like an AIO when poppered together
Simple to use
Quicker to dry than AIO
Some you can replace absorbent inner and reuse shell
Some feature a pocket opening too
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Pocket
A waterproof outer, and usually a fleece inner
There is an opening at the back to stuff with inserts (the absorbency) – which allows customisation of absorbency
Simple to use
Shells dry very quickly (inserts vary in drying speed, but can have additional used on rotation)
Fitted nappies
Can be sized or birth to potty
The whole nappy is absorbent
Can be fasted in a variety of ways – poppers, hoop and loop, or Nippa
They need a wrap over the top to make waterproof
High containment
Great for heavy wetters/overnight
Flat
Such as terry squares, prefolds or muslins
They are folded and fasted with a nippa
Need a wrap over the top to make waterproof
Most economical option, with multiple uses
Fast drying
