Dr. Brown's baby bottle diminishes colic, burping, and gas. The internal vent system offers vacuum-free feeding, closest to breastfeeding. A breast-like nipple shape promotes proper latching, easing transitions between breast and bottle. This design also preserves nutrients and aids in digestion for sounder sleep. Included is a 100% silicone HappyPaci pacifier, shaped like Dr. Brown's bottle nipple.