These pull up training pants are made similar to the QTBUNNS diapers. They have an outer layer and an inner layer of flannel that is soft against baby’s skin. Sewn securely inside is a thick multiple layer of absorbent terry. Between the inner and outer layers of flannel is a layer of 1 mil Pul fabric that provides hidden waterproof protection. Elastic waist and legs provides the perfect fit to protect against leaks.