Philips AVENT unique AirFree vent is designed to draw air away from the nipple keeping it full of milk.
* At 2 weeks of age, babies fed with a Philips AVENT bottle showed less colic, and significantly less fussing at night compared to babies fed with another leading bottle. We recommend replacing nipples every 3 months for hygiene reasons. Philips AVENT anti-colic bottle is made of BPA free material (PP). The shape of the nipple allows for a secure latch, and the ribbed texture helps prevent nipple collapse, for uninterrupted, comfortable feeding.