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.

Features:

• Includes 3 Dr. Brown's Polyproylene 8 oz. Bottles
• Made from BPA free, polyproylene 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 dis, cap, cleaning brush and instructions
• Reduces colic, spit-up, burping and gas
• Prevents air bubbles from forming in milk or formula
• Helps reduce fluid in the ear
• Prevents nipple collapse