For only cloth diapering, without the use of disposable diapers, you may need a combination of 16-20 Just Bumm Cloth Diapers, Organic Cotton Nappies (Fluffie) & Kewt Langots. This is because a perfect diapering routine should include diaper-free time. Hence using a mix of cloth diapers and langots would be a more practical and affordable approach.