All-in-one (AIO) diapers

AIO diapers are typically comprised of an absorbent material sewn into a waterproof cover. They are easy to use, however this design takes a long time to dry.  AI2 (All-in-two) diapers have an absorbent inner that can be snapped into the waterproof cover. This design dries quicker, and washes more thoroughly, and it is less expensive because the waterproof cover can be re-used with subsequent changes.