The Philips Avent Natural Response 3.0 Feeding Bottle features Air Free Vent technology to reduce colic and discomfort. Its soft silicone nipple mimics the breast for easy latch-on, making it ideal for babies transitioning between breastfeeding and bottle feeding. BPA-free and ergonomically designed for comfort. Key Features Natural Response Nipple mimics breastfeeding Air Free Vent reduces colic BPA-Free material ensures safety Ergonomic design for comfort Leak-proof design prevents spills Key Materials: Bottle made of Polypropylene (PP); Silicone teat; Includes an AirFree Vent (plastic/silicone) designed to keep air away from the teat.Experts in baby care essentials and innovative feeding solutions.Use As Needed For FeedingInspect bottle and nipple regularly. Ensure AirFree vent is correctly assembled. Never warm milk in the microwave.