Its comforting Heart Quilts liner provides breathability and comfort while pulling wetness and mess away from the skin. In addition, Air Channels help distribute moisture evenly, providing up to 12 hours of protection, while a Wetness Indicator tells you when your baby might need a change. For complete comfort, the outer cover is Blankie Soft with a special Umbilical Cord Notch to protect your newborn baby's belly with a perfectly contoured fit.