The pop in new gen v2 middle box in minkee is designed for most days and nights it contains ten reusable new gen v2 minkee nappies 3 night time bamboo boosters 80 biodegradable liners and one waterproof tote bag pop ins have stretchy tabs like a disposable nappy for a snug fit around baby every time with a soft waterproof shell that lets babys bottom breathe a clever absorbent panel in the outer shell helps hold the wetness in the middle of the nappy for extra dry time between changes