OsoCozy Gauze Cloth Diaper Doublers provide extra absorbency when needed during naps or nighttime rest. Typically, one insert is all that is needed but you can comfortably add up to three. Add the number of inserts you need when needed or use with every change to minimize staining of baby's diapers and improve the longevity of the diapers. Each doubler is 4 x 14 inches and made of six layers of soft absorbent 100% cotton gauze. This is the same material as our best-selling Osocozy Bleached Prefold Diapers. This little extra will do the trick when needed to keep your baby dry at night or during long naps. Use with all types of cloth diapers for added absorbency. Prior to first use, please wash once. For cloth diaper inserts and cloth diapers, we recommend a short cycle cold wash, followed by a full cycle wash on high temperature. Line dry or dry on high temperature. We recommend an oxygenated bleached over chloring bleach. Do not use fabric softener as it coats the fabric and prevents absorption.