Our specially designed pop in night time boosters simply pop into the pop in nappy to keep them dry overnight ensuring nothing but dream filled nights for you both made for your pop ins but can be used with other reusable nappies too pack of 3 extra absorbent bamboo boosters for night time use foldable for extra absorbency with extra soft micro fleece in the middle naturally antibacterial designed to perfectly fit the pop in nappy can be used with any reusable nappy