WHY DR BROWN'S? The Dr. Brown's Natural Flow Baby Bottle is the only baby bottle that features a patented internal vent system. This wind eliminates the air bubbles and vacuum effect to allow positive-pressure feeding with no air - similar to breast-feeding. And all Dr. Brown's natural flow baby bottles include the following features: Easy to clean and top-rack dishwasher safe - Connects directly to most breast pumps (standard bottles only) ADDITIONAL TEATS available in all sizes
