Philips Avent Natural teat is ultra-soft and has a flexible spiral form that resembles a breast. The natural teat shape and comfort petals allow for a natural latch, making it simple to combine breast and bottle feeding. The wide breast-shaped teat encourages a natural latch on, comparable to that of the breast, making it simple for your infant to alternate between breast and bottle feeding. Teat petals promote suppleness and flexibility without causing teat collapse. The Philips Avent Natural's revolutionary twin valve design relieves colic and discomfort by directing air into the bottle rather than the baby's stomach. Philips Avent products are interchangeable and interoperable with one another, making the transition from baby to toddler a breeze.