The Esembly Cloth Diaper Bundle Set includes three ultra-absorbent organic cotton Inners and one recycled waterproof Outer. The Esembly diaper is made of two parts: the Inner provides the absorbency, and the Outer layers over the Inner to complete the diaper. This two-part diaper ensures no inconvenient leaks, making it blowout-proof. The Inners are made of 100% certified organic cotton, while the Outers are made from 100% post-consumer plastic bottles, free of lead, BPA, PVC, and phthalates. This set is designed to be landfill-free and cost-saving, requiring only 20-24 diaper Inners and 6 Outers from birth through potty training. The Inners are easy to launder, designed by diaper laundering experts, and can be washed twice per week following Esembly’s 4-step instructions. The Outers can be used multiple times before laundering.