Kushies Ultra diapers are all in one diapers. They are Dad friendly and perhaps one of the easiest diaper systems to use. Just place the diaper on your baby and attach it with the hook and loop (velcro) closures. They are made of 100% cotton flannel on the interior and have a waterproof exterior. They have a built in flap for greater absorbency and a quicker drying time. They come in a variety of cute prints and solids.