Happy Feeding Reduces Colic, Split-up, Burping & Gas Helps Preserve Vitamins C, A + E Plus Lipids BPA Free Vacuum-Free Feeding Helps Digestion Helps reduce feeding problems: Our bottles are known for reducing colic, split-up, burping and gas Proven to help preserve bottle milk nutrients*: Vitamins C, A, and E are critical for health in infancy Vacuum-free feeding helps digestion: Good digestion is essential for babies, particularly newborns Fully-vented bottle design: Closest to breastfeeding Internal Vent System and silicone nipple work together: Controlled flow so babies feed at their own pace *Per a recent university study. Internal Vent System Air enters the bottle collar and routes directly through the internal vent system. The air channels through the vent tube, bypassing the milk, to the end of the bottle. The vent prevents aeration of the milk, vacuum pressure and nipple collapse. Baby feeds comfortably while milk flows freely, like breastfeeding. Vitamin C in Breastmilk A university study set out to measure nutrient levels in baby bottle breastmilk and formula. It was determined that Dr. Brown's fully-vented bottles help preserve levels of important nutrients. The vent system reduces air bubble oxidation of the milk, which is fragile and susceptible to nutrient loss. Contents 1 - 8 oz/240 ml Wide-Neck baby bottle 1- Level 1 silicone nipple 1 - Cleaning brush Instructions