Easy To Launder: Afraid of the laundry? Don’t be. Inners are designed by nappy laundering experts! Wash them twice per week following Esembly’s easy and effective 4-step instructions. For best results, launder with specially formulated Esembly Washing Powder (sold separately). Wash Inners after each use, Outers can be used multiple times before laundering. Landfill-Free And Saving: Instead of going through endless packs of disposables (6500+ if we’re talking numbers), with Esembly you only need 20-24 nappies Inners, and 6 Outers (in each of the 2 sizes) from birth through to potty training. This not only saves the planet from nappy waste but saves you money, too!. Organic And Recycled: Esembly Inners are made of 100% GOTS certified organic cotton. As for the Outers, we’re turning trash into treasure! Standard 100 Oeko-Tex certified and made of 100% post-consumer plastic bottles, Outers are free of lead, BPA, PVC, and phthalates, making them perfect for your baby's sensitive skin. Blowout Proof: Disposable nappies are notorious for messy leaks and blowouts, Esembly’s two-part nappy ensures no inconvenient leaks. If anything is to sneak past the Inner, it gets caught by the Outer. The ultimate in nappy containment!. Absorbent And Waterproof: The Esembly Cloth Nappying Bundle includes three ultra-absorbent organic cotton Inners and one recycled waterproof Outer. The Esembly nappy is made of 2 parts, the Inner provides the absorbency, and the Outer layers over the Inner to complete the nappy. Esembly Cloth Nappies come in two trim-fitting sizes: Size 1 (7-17lbs) and Size 2 (18-35lbs) to take your baby from birth to potty training.