Called a booster as it is used to boost absorbency in your nappy.
Generally used in conjunction with a microfibre insert, as it is much slower to absorb than microfibre, but far exceeds the amount of liquid it holds compared to microfibre.
Whilst you can choose to use these during the day, they are popular for use in nighttime nappies due to their absorbency.
These take longer to dry, but could be just what you need for a heavy wetter! (Measurements are 30cm x 11cm approx).
Please note, that sometimes these may vary in colour dependant upon what is available to our supplier at the time. They will be either cream or white.