Extra snap-in AI2 Absorbent Core, for use with Antsy Pants™ AI2 covers in size M only. Do not purchase this item if you have Antsy Pants™ AIO with attached absorbent cores. Choose Antsy Pants™ AI2 if you: ...will use chlorine bleach on your absorbent cores without damaging your waterproof covers. ...will extend the use of your waterproof Antsy Pants covers by changing a wet absorbent core for a clean one before washing.

The Antsy Pants™ AI2 design is recommended for daytime use only as the snaps create pokey lumps inside the diaper that can be uncomfortable when lying down.
This item is not suitable for use as a night insert. Please see Hemp/Cotton Night Insert if you are looking for an insert to use with Antsy Pants™ for overnight use.