Loose stool stoppers around the back and legs help to aim for zero leaks. Dry and prevents dampness. The full ventilation sheet keeps the baby's bottom dry even if the baby is hot and sweating. Has notification signs that tell you when to change the diaper. If there is urine, the line changes to a blue-green color, so you can quickly tell when to change the diaper. Flexible tape is soft on the skin. Material is soft on your baby's skin and the smooth design keeps fingers from catching on anything.