What is a fitted nappy?
A fitted nappy is similar in shape to a disposable nappy but the whole nappy is made of absorbent material. For this reason fitted nappies require a cover to stop clothing getting wet. When they are changed it is usually possible to either put the same cover back on (particularly if it is made of PUL and can be wiped clean ), or to have a few covers that are rotated throughout the day and allowed to dry between changes. This practice reduces the number of covers you need.
Advantages
Covers are able to be used multiple times before being washed, which lengthens their lifespan, particularly if the cover is made from PUL which can deteriorate over time.
You can add extra boosters to the fitted nappy (just lay them in) to make it more absorbent.
A fitted nappy that has become too small can be used as a booster inside a larger nappy
Disadvantages
Slower drying due to the many layers that make up the nappy
When it is ‘nappy change time’, you are changing both a cover and a fitted nappy which can be fiddly if you have a wriggly baby.
You may need to add a microfleece liner to keep bub's skin dry.