Every bumGenius diaper comes with a FREE one size micro terry insert and a newborn insert/diaper doubler. Experience the cloth diaper loved by every-day people -- like your babysitter, grandparents and even dad! The bumGenius one size cloth diaper is the first cloth diaper to feature stretch-to-fit tabs (patent pending), making cloth diapering as easy and comfortable as using disposables. Don't keep buying diapers. bumGenius diapers easily fit (and they really do!) babies from 8 pounds all the way up to 35 pounds -- newborn to potty training. Simple 3 x 3 snap downs adjust to your baby's rise then hook and loop fasteners let you get a trim fit just for your baby. Designed with fit and function in mind.