Alcmena V3.5 and Monarch The Ultimate  Snap & Wipe nappy insert heavy wetter set  5-layer Hemp Insert:  5-layers of hemp fibre (hemp absorbs up to 20% its own weight while still feeling dry to the touch!) Snaps-in at both ends of the nappy shell for wiggly bubs Gussetted (no more leaks!) 5-layer Bamboo Insert:  5x layers of pure bamboo Snaps-in at both ends of the nappy shell 3-layer Nap Insert:  3x layers of pure bamboo Snaps in at the front, with a middle snap for customising absorbency (fold it in thirds or halves to place absorbency where bub needs it most  Heres how to use them: For light wetters/day-use, simply snap the Hemp / Bamboo Insert into the nappy shell For nap times, add in the Nap Insert by snapping it onto the Hemp / Bamboo Insert For night time, snap in the Hemp Insert, and then snap in the Bamboo Insert on top  For super heavy-wetters, snap in the Hemp Insert, then the Bamboo Insert, and then the Nap Insert on top of that.