Dr. Brown’s® Natural Flow® Anti-Colic Options+™ Wide-Neck Baby Bottle, 5oz/150mL, 2-Pack, is designed to provide a comfortable and natural feeding experience for infants. Each bottle features an internal vent system clinically proven to reduce colic by decreasing spit-up, burping, and gas . The breast-like nipple shape encourages proper latch and consistent flow, allowing babies to feed at their own pace.