It is made of breathable material that keeps your baby dry. Pampers diapers consist of different layers, which ensure that liquid moves to the bottom of the diaper and provides maximum absorption. The mattress is very soft and comfortable to sleep on. It has three layers and three absorbency points that wick away moisture and promote 12-hour dryness. Breathable - promotes air circulation, which is good for the baby's skin. It has different size adjusters for comfort.