Reduces colic A clinical trial demonstrated that at 2 weeks of age, babies fed with the AVENT Bottle experienced less colic than babies fed with a conventional bottle. Allows air into the bottle instead of your baby's tummy As your baby feeds, the unique skirt on the AVENT Nipple flexes to allow air into the bottle instead of your baby's tummy. Like natural breastfeeding your baby controls the milk flow Soft nipple with rounded shape The BPA-Free nipple allows your baby to control milk flow more like breastfeeding, which can help reduce overeating and spit-up. A unique skirt system flexes to allow air into the bottle and promotes healthy, active feeding and reduces colic. Avent Slow Flow Nipple 1+ months |