Natural Response Nipple: The bottle is equipped with the Natural Response Nipple, which has a unique opening that releases milk only when the baby actively drinks. This allows babies to drink, swallow, and breathe at their own natural rhythm, similar to breastfeeding. This feature makes it easier to combine breast and bottle feeding. Anti-Colic Valve: The bottle includes an anti-colic valve designed to keep air away from the baby's tummy during feeding. This helps reduce colic and discomfort in babies, ensuring a more comfortable feeding experience. Wide, Soft, and Flexible Nipple: The nipple of the bottle is wide, soft, and flexible, designed to mimic the shape and feel of a breast. This helps the baby to latch on easily and feed comfortably, promoting a natural feeding experience. Ergonomic Bottle Design: The bottle features an ergonomic design that is easy to grip at any angle, providing maximum comfort for both the baby and the parent during feeding sessions. Overall, the Avent Natural Response Feeding Bottle is designed to facilitate a natural feeding experience for babies while offering convenience and comfort for parents.