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AIOs are fitted diapers that have a waterproof outer layer. The outer layer usually consists of fabric that has a PUL (polyurethane) backing, fleece, or wool. These are the closest in similarity to disposable diapers since they are a one-piece diapering system. These diapers are usually fastened with hook/loop or snap fasteners (no snappis or pins needed). The absorbent soaker material is often sewn into the diaper or it may be detachable. These are preferred by parents who want the convenience of disposables but the environmental advantages of cloth. You do not need a separate diaper cover for an AIO. |
