Some MCN terms
Flannel flat – a flat square of flannelette cotton.
Terry flat – a flat square of terry toweling cotton (what we grew up in).
Prefold – a square/rectangular nappy made up of 3 panels with the middle panel having more layers for extra absorbency. Usually cotton, hemp, bamboo or blends.
Booster – extra material placed in the nappy (or between the nappy and cover) to increase absorbency. Can be organic material such as: cotton, hemp, bamboo or blends, or synthetic such as microfibre. A wide variety of shapes and sizes.
Insert/Stuffer – like a booster but may not be good to put next to babies skin (?). Used to stuff pocket nappies.
AIO (all in one) – cover, liner and absorbent section all sewn together in one piece.
AI2 (all in two) – cover with an absorbent section that snaps in and out (often just called an AIO).
Pocket – a cover and liner with an absorbent section that fits into a pocket that opens as a slit at the back.
Fitted – a shaped nappy (needs a cover).
Cover or Wrap – A breathable waterproof cover for the nappy (modern pilchers). Can be made from PUL, fleece or wool. If PUL, it may or may not have leg gussets.
PUL – Polyurethane Laminate: a breathable, waterproof material used to make covers. May be hidden under a layer of fashionable material.
Soaker – A wool cover. Usually used at night, air dried during the day. Washed and lanolised once a month. Can be knitted.
Liner - A layer between baby and the nappy that keeps baby feeling dry and/or makes poo disposal easier. Can be made from reusable materials like microfleece or raw silk, or can be disposable/biodegradable/flushable.