Breathable Pacifier: Light, breathable, BPA-free pacifier with extra-large air holes that let your baby's skin breathe keeping it dryer while soothing, Extra-firm nipple: The Philips Avent Ultra Air pacifier comes with an extra-firm nipple that respects the natural shape of your baby's palate, teeth and gums, BPA Free: Our Philips Avent Ultra Soft and Ultra Air Nipples are made of 100% food-grade silicone are come free from hazardous chemicals and substances like BPA and allergens, Natural oral development: Our orthodontic, symmetrical soft silicone nipples are designed for natural oral development, Natural feel for baby: Natural, comfortable feel for baby with our textured silicone nipple that's designed to mimic the feel of moms breast