Dr. Brown's 4 Oz. Wide Neck Bottle Awards: American Baby Best of the Year (AMBY) award for 2004 Gold Winner in the 2000 Medical Designs Excellence Awards (MDEA) Dr. Brown's Natural Flow baby bottle is the only baby bottle that features a patented internal vent system. This vent eliminates the air bubbles and vacuum effect to allow positive-pressure feeding with no air - similar to breast-feeding.

Dr. Brown's 4 Oz. Wide Neck Bottle Designed to: * Reduce colic, spit-up, burping, and gas * Prevent air bubbles from forming in milk or formula * Help reduce fluid in the ear * Prevent nipple collapse

Dr. Brown's 4 Oz. Wide Neck Bottle Features: * Easy to clean and top-rack dishwasher safe * Includes a high-grade Level-One silicone nipple, patented two-piece internal vent, travel disk, cap, cleaning brush, and instructions