Dr. Brown's Polypropylene 4-oz Bottle

The 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.

• Reduce colic, spit-up, burping, and gas
• Prevent air bubbles from forming in milk or formula
• Suitable for children 0M+
• Made from BPA free, polypropylene plastic
• Easy to clean and top-rack dishwasher safe
• Connects directly to most breast pumps
• Includes a high-grade Level One silicone nipple, patented two-piece internal vent, travel disk, cap, cleaning brush and instructions