Inserts are designed to be stuffed into pocket diapers. They are usually rectangular and are made of absorbent material. Doublers are used with cloth diaper inserts to provide extra absorbency in a pocket diaper. While you can use two inserts, the extra bulk sometimes means the elastic doesn't fit snuggly around your baby's legs, leading to leaks, especially at night. Doublers are sometimes cut in an hourglass shape that reduces bulk around the legs. Other times, doublers are smaller rectangles and can be used as a newborn cloth diaper insert when the full-size insert is still too bulky for your tiny baby. Inserts and doublers can be made out of a variety of materials. Pocket diapers are designed with a stay-dry layer of fleece, Minky, microsuede, or other fabric that wicks moisture away from the baby. Because of this barrier, microfiber is a fairly common pocket diaper insert. You shouldn't place microfiber right next to your baby's skin (such as in AIOs and AI2s), since it can caus