Dr. Brown's Natural Flow Anti Colic Options+ Wide Mouth Glass Baby Bottle, 9 oz/270 ml, with Level 1 Slow Teat, Pack of 2 (Packaging May Vary)

Glass baby bottle against colics. The internal ventilation system against colic has been clinically proven to be effective in reducing colic. Reduces spitting, burping and wind. Consistent flow rate. Vacuum-free feeding comes closest to breastfeeding and Dr. Brown's silicone teats ensure even flow so babies can breastfeed at their own pace. Preserves nutrients. The anti-colic ventilation system has been proven to help preserve the nutrients of bottle milk and supports digestion for a better sleep. Nursing bottle: the breast-like shape of the teat ensures a correct locking and thus ensures a more natural bottle feeding and facilitates the transition from the breast to the bottle and back. The bottle grows with the baby. Dr. Brown's Natural Flow Anti-Colic Options+ Baby Bottle works best when the internal ventilation system is in place. However, it can be removed when the baby is feeding without having to put another bottle inside.