The Charlie Banana reusable insert value pack contains 3 inserts. Size Medium-Large, will fit in Medium and Large size Charlie Banana reusable diapers and will be a perfect booster as well. They are made of 4 highly absorbent layers of micro terry. They work wonderfully with our Charlie Banana 2-in-1 reusable diapering system and will also fit a variety of cloth diapers. The Charlie Banana Reusable Insert 3-Pack (Medium/Large) features: Charlie Banana highly absorbent washable inserts for Charlie Banana Diapers - includes 3 pieces. Use as a booster for night time or longer outings. Healthy, chemical free, chlorine free, optical whitener free. Naturally prevents diaper rash. Super absorbent and durable. Economical and eco friendly.